UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 591

• Manufacturer Part Number: UPD78F0552MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0552MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
16.4.2 3-wire serial I/O mode
serial input (SI1n) lines.
(1) Registers used
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
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 interface.
In this mode, communication is executed by using three lines: the serial clock (SCK1n), serial output (SO1n), and
Symbol
• Serial operation mode register 1n (CSIM1n)
• Serial clock selection register 1n (CSIC1n)
• Port mode register x (PMx)
• Port register x (Px)
The basic procedure of setting an operation in the 3-wire serial I/O mode is as follows.
<1> Set the CSIC1n register (refer to Figures 16-6 and 16-7).
<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. → Transmission/reception is enabled.
<4> Write data to transmit buffer register 1n (SOTB1n). → Data transmission/reception is started.
Caution Take relationship with the other party of communication when setting the port mode register and
Remark 78K0/KA2-L (25, 32-pin products): n = 0, x = 0, 3
• Serial operation mode register 11 (CSIM11)
Notes 1.
Figures 16-4 and 16-5).
Read data from serial I/O shift register 1n (SIO1n). → Data reception is started.
port register.
78K0/KB2-L:
78K0/KC2-L:
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).
To use P37/SO11, P35/SCK11, and P02/SSI11/INTP5 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
6
SSE11
Note 1
5
and asynchronously resets the internal circuit
n = 0, x = 1
n = 0, 1, x = 1, 4, 6, 12
Operation control in 3-wire serial I/O mode
CHAPTER 16 SERIAL INTERFACES CSI10 AND CSI11
DIR11
4
3
0
2
0
Note 2
.
1
0
CSOT11
0
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