IC, UART, DUAL, SMD, 26C92, PLCC44

SC26C92A1A

Manufacturer Part NumberSC26C92A1A
DescriptionIC, UART, DUAL, SMD, 26C92, PLCC44
ManufacturerNXP Semiconductors
SC26C92A1A datasheet
 


Specifications of SC26C92A1A

No. Of Channels2Supply Voltage Range4.5V To 5.5V
Operating Temperature Range-40°C To +85°CDigital Ic Case StylePLCC
No. Of Pins44SvhcNo SVHC (18-Jun-2010)
Operating TemperatureRoHS CompliantData Rate230.4Kilobaud
Uart FeaturesParity, Framing, & Overrun Error Detection, Start-End Break Interrupt/StatusRohs CompliantYes
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SC26C92
Dual universal asynchronous
receiver/transmitter (DUART)
Product specification
Supersedes data of 1998 Nov 09
IC19 Data Handbook
hilips
Semiconductors
INTEGRATED CIRCUITS
2000 Jan 31

SC26C92A1A Summary of contents

  • Page 1

    SC26C92 Dual universal asynchronous receiver/transmitter (DUART) Product specification Supersedes data of 1998 Nov 09 IC19 Data Handbook hilips Semiconductors INTEGRATED CIRCUITS 2000 Jan 31 ...

  • Page 2

    ... Detects break which originates in the middle of a character On-chip crystal oscillator Power down mode Receiver timeout mode Single +5V power supply Powers up to emulate SCC2692 1 COMMERCIAL V = + +5V 10 SC26C92C1N SC26C92C1A SC26C92C1B 2 Product specification SC26C92 INDUSTRIAL DWG # DWG # = - SC26C92A1N SOT129-1 SC26C92A1A SOT187-2 SC26C92A1B SOT307–2 853–1585 23061 ...

  • Page 3

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) NOTE: 1. Commercial devices are tested for the –40 to +85 C. PIN CONFIGURATIONS IP3 2 39 IP4 IP5 IP1 4 37 IP6 A2 5 ...

  • Page 4

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) BLOCK DIAGRAM 8 D0–D7 BUS BUFFER OPERATION CONTROL RDN WRN ADDRESS DECODE CEN 4 A0–A3 R/W CONTROL RESET INTERRUPT CONTROL INTRN IMR ISR TIMING BAUD RATE GENERATOR CLOCK SELECTORS COUNTER/ TIMER X1/CLK XTAL ...

  • Page 5

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) PIN DESCRIPTION PKG PIN SYMBOL SYMBOL TYPE 40,44 D0-D7 X I/O Data Bus: Bidirectional 3-State data bus used to transfer commands, data and status between the DUART and the CPU the ...

  • Page 6

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) 1 ABSOLUTE MAXIMUM RATINGS SYMBOL T Operating ambient temperature range A T Storage temperature range STG 3 V Voltage from V to GND Voltage from any pin to GND S ...

  • Page 7

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART CHARACTERISTICS 10 – unless otherwise specified SYMBOL Reset Timing (See Figure 3) t RESET pulse width RES 5 ...

  • Page 8

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) Block Diagram The SC26C92 DUART consists of the following eight major sections: data bus buffer, operation control, interrupt control, timing, communications Channels A and B, input port and output port. Refer to the ...

  • Page 9

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) operating frequency for each receiver and transmitter can be selected independently from the baud rate generator, the counter/timer, or from an external input. The transmitter accepts parallel data from the CPU, converts it ...

  • Page 10

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) This feature may be used automatically “turnaround” a transceiver when operating in a simplex system. Transmitter Disable Note (W.R.T. Turnaround) When the TxEMT bit is set the sequence of instructions: enable transmitter — ...

  • Page 11

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) seen. At this point the host has approximately 6/16–bit time to read a byte from the RxFIFO or the overrun condition will be set. The character then overruns the 9 ...

  • Page 12

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) the value in CTU and CTL and then restarted on the next C/T clock. If the C/T is allowed to end the count before a new character has been received, the counter ready ...

  • Page 13

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) Mode, command, clock select, and status registers are duplicated for each channel to provide total independent operation and control. Refer to Table 2 for register bit descriptions. Table 1. SC26C92 Register Addressing A3 ...

  • Page 14

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) BIT 7 BIT 6 CHANNEL MODE MR2A MR2B MR2B 00 = Normal 0x00 01 = Auto-Echo 10 = Local loop 11 = Remote loop NOTE: *Add 0.5 to values shown for 0 – ...

  • Page 15

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) Table 2. Register Bit Formats (Continued) BIT 7 BIT 6 SRA RECEIVED FRAMING SRB BREAK* ERROR* 0x01 Yes 1 = Yes NOTE: *These ...

  • Page 16

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) BIT 7 BIT 6 CTPU CTPU C/T[15] C/T[14] 0x06 0x06 BIT 7 BIT 6 CTPL CTPL C/T[7] C/T[6] 0x07 0x07 REGISTER DESCRIPTIONS Mode Registers MR0 is accessed by setting the MR pointer to ...

  • Page 17

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) MR2A – Channel A Mode Register 2 MR2A is accessed when the Channel A MR pointer points to MR2, which occurs after any access to MR1A. Accesses to MR2A do not change the ...

  • Page 18

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) applied via CRB. After reading or writing MR0B, the pointer will point to MR1B. The bit definitions for this register are identical to MR0A, except that all control actions apply to the Channel ...

  • Page 19

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) CRA – Channel A Command Register CRA is a register used to supply commands to Channel A. Multiple commands can be specified in a single write to CRA as long as the commands ...

  • Page 20

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) SRA[6] – Channel A Framing Error This bit, when set, indicates that a stop bit was not detected (not a logical 1) when the corresponding data character in the FIFO was received. The ...

  • Page 21

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) SOPR – Set the Output Port Bits (OPR) SOPR[7:0] – Ones in the byte written to this register will cause the corresponding bit positions in the OPR to set to 1. Zeros have ...

  • Page 22

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) ISR[7] – Input Port Change Status This bit is a ‘1’ when a change-of-state has occurred at the IP0, IP1, IP2, or IP3 inputs and that event has been selected to cause an ...

  • Page 23

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) RESETN A0– CEN t CS RDN D0–D7 FLOAT (READ) WDN D0–D7 (WRITE) RDN IP0–IP6 (a) INPUT PINS WRN OP0–OP7 (b) OUTPUT PINS 2000 Jan 31 t RES SD00133 Figure 3. Reset ...

  • Page 24

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) WRN INTERRUPT OUTPUT RDN INTERRUPT OUTPUT NOTES: 1. INTRN or OP3-OP7 when used as interrupt outputs. 2. The test for open-drain outputs is intended to guarantee switching of the output transistor. Measurement of ...

  • Page 25

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) TxC (INPUT) TxD TxC (1X OUTPUT) RxC (1X INPUT) RxD TxD D1 TRANSMITTER ENABLED TxRDY (SR2) WRN CTSN (IP0) 2 RTSN (OP0) OPR( NOTES: 1. Timing shown for ...

  • Page 26

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) D1 RxD RECEIVER ENABLED RxRDY (SR0) FFULL (SR1) RxRDY/ FFULL 2 (OP5) RDN STATUS DATA D1 OVERRUN (SR4) 1 RTS (OP0) OPR( NOTES: 1. Timing shown for MR1( ...

  • Page 27

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) 2.7K INTRN 50pF + 2.4mA 400 A V D0–D7 TxDA/B OP0–OP7 150pF Figure 13. Test Conditions on Outputs 2000 Jan 31 + SD00157 27 Product specification ...

  • Page 28

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) DIP40: plastic dual in-line package; 40 leads (600 mil) 2000 Jan 31 28 Product specification SC26C92 SOT129-1 ...

  • Page 29

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) PLCC44: plastic leaded chip carrier; 44 leads 2000 Jan 31 29 Product specification SC26C92 SOT187-2 ...

  • Page 30

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 1.75 mm 2000 Jan 31 30 Product specification SC26C92 SOT307-2 ...

  • Page 31

    Philips Semiconductors Dual universal asynchronous receiver/transmitter (DUART) Data sheet status Data sheet Product Definition status status Objective Development This data sheet contains the design target or goal specifications for product development. specification Specification may change in any manner without notice. ...