UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 70

• Manufacturer Part Number: UPD78F9234MC-5A4-A
• Description: MCU 8BIT 8KB FLASH 30PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9234MC-5A4-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 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: -

68
Address: FF00H After reset: 00H (Output latch) R/W
Symbol
P0
Address: FF02H After reset: 00H (Output latch) R/W
Symbol
P2
Address: FF03H After reset: 00H
Symbol
P3
Address: FF04H After reset: 00H (Output latch) R/W
Symbol
P4
Address: FF0CH After reset: 00H (Output latch) R/W
Symbol
P12
Address: FF0DH After reset: 00H (Output latch) R/W
Symbol
P13
(2) Port registers (P0, P2, P3, P4, P12, P13)
Note Because P34 is read-only, its reset value is undefined.
These registers are used to write data to be output from the corresponding port pin to an external device
connected to the chip.
When a port register is read, the pin level is read in the input mode, and the value of the output latch of the
port is read in the output mode.
P00 to P03, P20 to P23, P30 to P34, P40 to P47, P120 to P123, and P130 are set by using a 1-bit or 8-bit
memory manipulation instruction.
Generation of reset signal sets these registers to 00H.
Pmn
P47
7
0
7
0
7
0
7
7
0
7
0
0
1
Output 0
Output 1
P46
Controls of output data (in output mode)
6
0
6
0
6
0
6
6
0
6
0
Note
(Output latch) R/W
Figure 4-16. Format of Port Register
P45
5
0
5
0
5
0
5
5
0
5
0
CHAPTER 4 PORT FUNCTIONS
User’s Manual U17446EJ5V0UD
Note
P34
P44
m = 0, 2, 3, 4, 12, or 13; n = 0-7
4
0
4
0
4
4
4
0
4
0
P123
P03
P23
P33
P43
3
3
3
3
3
3
0
Input low level
Input high level
Input data read (in input mode)
P122
P02
P22
P32
P42
2
2
2
2
2
2
0
P121
P01
P21
P31
P41
1
1
1
1
1
1
0
P120
P130
P00
P20
P30
P40
0
0
0
0
0
0