UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 538

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

<R>
16.4.2 3-wire serial I/O mode
interface.
serial input (SI1n) lines.
(1) Registers used
538
Address: FF88H After reset: 00H R/W
CSIM11
The 3-wire serial I/O mode is used for connecting peripheral ICs and display controllers with a clocked serial
In this mode, communication is executed by using three lines: the serial clock (SCK1n), serial output (SO1n), and
Symbol
<1> Set the CSIC1n register (refer to Figures 16-5 and 16-6).
<2> Set bits 4 to 6 (DIR1n, SSE11 (serial interface CSI11 only), and TRMD1n) of the CSIM1n register (refer to
<3> Set bit 7 (CSIE1n) of the CSIM1n register to 1.
<4> Write data to transmit buffer register 1n (SOTB1n).
Remark 78K0/KB2-L:
The basic procedure of setting an operation in the 3-wire serial I/O mode is as follows.
Caution Take relationship with the other party of communication when setting the port mode register
Serial operation mode register 1n (CSIM1n)
Serial clock selection register 1n (CSIC1n)
Port mode register x (PMx)
Port register x (Px)
Notes 1.
Figures 16-3 and 16-4).
Read data from serial I/O shift register 1n (SIO1n).
Serial operation mode register 11 (CSIM11)
and port register.
78K0/KC2-L: n = 0, 1, x = 1, 4, 6, 12
CSIE11
CSIE11
2.
<7>
0
To use P62/SO11, P60/SCK11/SCLA0, and P42/SSI11/PCL/INTP6 as general-purpose ports
when CSISEL = 0, set CSIM11 in the default status (00H).
To use P120/SO11/INTP0/EXLVI, P40/SCK11/RTCCL/RTCDIV, and P42/SSI11/PCL/INTP6 as
general-purpose ports when CSISEL = 1, set CSIM11 in the default status (00H).
Bit 0 (CSOT11) of CSIM11 and serial I/O shift register 11 (SIO11) are reset.
Disables operation
TRMD11
n = 0, x = 1
CHAPTER 16 SERIAL INTERFACES CSI10 AND CSI11
6
Preliminary User’s Manual U19111EJ2V1UD
SSE11
Note 1
5
and asynchronously resets the internal circuit
Operation control in 3-wire serial I/O mode
DIR11
4
Transmission/reception is enabled.
Data reception is started.
Data transmission/reception is started.
3
0
2
0
Note 2
.
1
0
CSOT11
0