参数资料
型号: UPD70F3261YGF-JBT-A
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 20 MM, PLASTIC, QFP-100
文件页数: 10/129页
文件大小: 8549K
代理商: UPD70F3261YGF-JBT-A
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16541EJ5V1UD
107
4.3.2
Port 1
Port 1 is a 2-bit port for which I/O settings can be controlled in 1-bit units.
Port 1 includes the following alternate-function pins.
Table 4-5. Port 1 Alternate-Function Pins
Pin No.
Pin Name
GF
GC
Alternate-Function Pin Name
I/O
Remark
Block Type
P10
5
3
ANO0
Output
A-2
P11
6
4
ANO1
Output
A-2
Caution
When the power is turned on, the P10 and P11 pins may momentarily output an undefined level.
Remark
GF: 100-pin plastic QFP (14
× 20)
GC: 100-pin plastic LQFP (fine pitch) (14
× 14)
(1) Port 1 register (P1)
0
Outputs 0
Outputs 1
P1n
0
1
Output data control (in output mode) (n = 0, 1)
P1
0
P11
P10
After reset: 00H (output latch)
R/W
Address: FFFFF402H
Caution
Do not read/write the P1 register during D/A conversion (see 14.4.3 Cautions).
(2) Port 1 mode register (PM1)
1
Output mode
Input mode
PM1n
0
1
I/O mode control (n = 0, 1)
PM1
1
PM11
PM10
After reset: FFH
R/W
Address: FFFFF422H
Cautions 1. When using P1n as the alternate function (ANOn pin output), set the PM1n bit to 1.
2. When using one of the P10 and P11 pins as an I/O port and the other as a D/A output
pin, do so in an application where the port I/O level does not change during D/A
output.
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