UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 335

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

17.4 Operations of Serial Interfaces SIO30 and SIO31
17.4.1 Operation stop mode
(1) Register settings
This section explains the two modes of serial interface SIO3n.
Because the serial transfer is not performed during this mode, the power consumption can be reduced.
In addition, pins can be used as normal I/O ports.
Address: FFB0H (SIO30), FFB8H (SIO31) After reset: 00H
CSIM3n
Note When CSIE3n = 0 (SIO3n operation stop status), the pins SI3n, SO3n, and SCK3n can be used for port
Remark n = 0, 1
Operation stop mode is set by serial operation mode register 3n (CSIM3n).
CSIM3n is set by a 1-bit or 8-bit memory manipulation instruction.
RESET input clears CSIM3n to 00H.
Symbol
functions.
CSIE3n
CSIE3n
<7>
0
Operation disabled
CHAPTER 17 SERIAL INTERFACES SIO30 AND SIO31
Shift register operation
6
0
5
0
User’s Manual U14046EJ5V0UD
Enable/disable specification for SIO3n
Clear
4
0
Serial counter
R/W
3
0
MODEn
2
Port function
SCL3n1
1
Port
Note
SCL3n0
0
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