UPD78F9202MA-CAC-A Renesas Electronics America, UPD78F9202MA-CAC-A Datasheet - Page 58

• Manufacturer Part Number: UPD78F9202MA-CAC-A
• Description: MCU 8BIT 4KB FLASH 128B RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9202MA-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 7
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 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: -
• Connectivity: -

4.2.1
(1)
port mode register 2 (PM2). When the P20 to P23 pins are used as an input port, an on-chip pull-up resistor can be
connected in 1-bit units by using pull-up resistor option register 2 (PU2).
and P23 pins differ, therefore, depending on the selected system clock oscillator. The following three system clock
oscillators can be used.
56
Port 2 is a 4-bit I/O port with an output latch. Each bit of this port can be set to the input or output mode by using
This port can also be used for A/D converter analog input, timer I/O, and external interrupt request input.
The P22 and P23 pins are also used as the X2 and X1 pins of the system clock oscillator. The functions of the P22
The system clock oscillation is selected by the option byte. For details, refer to CHAPTER 15 OPTION BYTE.
Reset signal generation sets port 2 to the input mode.
Figures 4-2 and 4-4 show the block diagrams of port 2.
μ
<1> High-speed internal oscillator
<2> Crystal/ceramic oscillator
<3> External clock input
PD78F920x
Port 2
The P22 and P23 pins can be used as I/O port pins or analog input pins to the A/D converter.
The P22 and P23 pins cannot be used as I/O port pins or analog input pins to the A/D converter because
they are used as the X2 and X1 pins.
The P22 pin can be used as an I/O port pin or an analog input pin to the A/D converter.
The P23 pin is used as the X1 pin to input an external clock, and therefore it cannot be used as an I/O port
pin or an analog input pin to the A/D converter.
CHAPTER 4 PORT FUNCTIONS
User’s Manual U18172EJ3V0UD