μPD78F950x) Pin Nam" />
參數(shù)資料
型號: UPD78F9202MA-CAC-A
廠商: Renesas Electronics America
文件頁數(shù): 112/158頁
文件大小: 0K
描述: MCU 8BIT 4KB FLASH 128B RAM
標(biāo)準(zhǔn)包裝: 400
系列: 78K0S/Kx1+
核心處理器: 78K0S
芯體尺寸: 8-位
速度: 10MHz
外圍設(shè)備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 7
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 10-LSSOP(0.225",5.72mm 寬)
包裝: 托盤
CHAPTER 4 PORT FUNCTIONS
User’s Manual U18172EJ3V0UD
55
Table 4-2. Port Functions (
μPD78F950x)
Pin Name
I/O
Function
After Reset
Alternate-
Function Pin
P20
TOH1
P21
INTP0
P22
P23
Note
I/O
Port 2.
4-bit I/O port.
Can be set to input or output mode in 1-bit units.
On-chip pull-up resistor can be connected by setting software.
Input
EXCLK
Note
P32
I/O
Can be set to input or output mode in 1-
bit units.
Input
INTP1
P34
Note
Input
Port 3.
On-chip pull-up
resistor can be
connected by
setting software.
Input only
Input
RESET
Note
P40 and P43
I/O
Port 4.
2-bit I/O port.
Can be set to input or output mode in 1-bit units.
On-chip pull-up resistor can be connected setting software.
Input
Note
For the setting method for pin functions, see CHAPTER 15 OPTION BYTE.
Caution
The P22 and P23/EXCLK pins are pulled down during reset. The P34/RESET pin is pulled up during
reset by the reset pin function/power-on clear circuit.
Remark
P23 can be allocated when the high-speed internal oscillation is selected as the system clock.
4.2
Port Configuration
Ports consist of the following hardware units.
Table 4-3. Configuration of Ports
Item
Configuration
Control registers
Port mode registers (PM2 to PM4)
Port registers (P2 to P4)
Port mode control register 2 (PMC2) (
μPD78F920x only)
Pull-up resistor option registers (PU2 to PU4)
Ports
Total: 8 (CMOS I/O: 7, CMOS input: 1)
Pull-up resistor
Total: 7
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