UPD78F9222CS-CAC-A Renesas Electronics America, UPD78F9222CS-CAC-A Datasheet - Page 67

• Manufacturer Part Number: UPD78F9222CS-CAC-A
• Description: MCU 8BIT 4KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9222CS-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 4KB (4K 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: -

4.2.5
4.3
This is a 1-bit output-only port.
Figure 4-12 shows the block diagram of port 13.
The ports are controlled by the following four types of registers.
(1) Port mode registers (PM2, PM3, PM4, PM12)
Port mode registers (PM2, PM3, PM4, PM12)
Port registers (P2, P3, P4, P12, P13)
Port mode control register 2 (PMC2)
Pull-up resistor option registers (PU2, PU3, PU4, PU12)
Registers Controlling Port Functions
These registers are used to set the corresponding port to the input or output mode in 1-bit units.
Each port mode register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets these registers to FFH.
When a port pin is used as an alternate-function pin, set its port mode register and output latch as shown in
Table 4-3.
Caution Because P30, P31, and P43 are also used as external interrupt pins, the corresponding
Port 13
P13:
RD:
WR
Remark When a reset is input, P130 outputs a low level. If P130 outputs a high level immediately after
: Write signal
WR
Port register 13
Read signal
interrupt request flag is set if each of these pins is set to the output mode and its output level
is changed.
interrupt mask flag to 1 in advance.
RD
PORT
reset is released, the output signal of P130 can be used as a dummy CPU reset signal.
To use the port pin in the output mode, therefore, set the corresponding
Output latch
(P130)
P13
Figure 4-12. Block Diagram of P130
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16898EJ6V0UD
P130
65