UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 334

• 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

(2) Port mode registers 2, 3 (PM2, PM3)
332
Address: FF22H After reset: FFH
Address: FF23H After reset: FFH
These registers set the input/output of ports 2 and 3 in 1-bit units.
To use the P21/SO30 and P35/SO31 pins as serial data output, and the P22/SCK30 and P36/SCK31 pins as
clock output, clear PM21, PM35, PM22, PM36, and the output latches of P21, P35, P22, and P36 to 0.
To use the P20/SI30 and P34/SI31 pins as serial data input, and the P22/SCK30 and P36/SCK31 pins as clock
input, set PM20, PM34, PM22, and PM36 to 1.
At this time, the output latches of P20, P34, P22, and P36 can be either 0 or 1.
PM2 and PM3 are set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets PM2 and PM3 to FFH.
Symbol
PM2
Symbol
PM3
PM2n
PM3n
7
1
0
1
7
1
0
1
Output mode (output buffer on)
Input mode (output buffer off)
Output mode (output buffer on)
Input mode (output buffer off)
CHAPTER 17 SERIAL INTERFACES SIO30 AND SIO31
Figure 17-4. Format of Port Mode Register 2 (PM2)
Figure 17-5. Format of Port Mode Register 3 (PM3)
PM36
6
1
6
R/W
R/W
PM25
PM35
5
5
User’s Manual U14046EJ5V0UD
I/O mode selection of P2n pin (n = 0 to 5)
I/O mode selection of P3n pin (n = 0 to 6)
PM24
PM34
4
4
PM23
PM33
3
3
PM22
PM32
2
2
PM21
PM31
1
1
PM20
PM30
0
0