參數(shù)資料
型號(hào): MB90P634APF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 35/107頁(yè)
文件大?。?/td> 1599K
代理商: MB90P634APF
33
MB90630A Series
Port Resistance Registers
Block Diagram
Notes: Input resistance register R/W
Controls the pull-up resistor in input mode.
0: Pull-up resistor disconnected in input mode.
1: Pull-up resistor connected in input mode.
The setting has no meaning in output mode (pull-up resistor disconnected).
The direction register (DDR) sets input or output mode.
The pull-up resistor is disconnected in hardware standby or stop mode (SPL = 1) (high impedance).
This function is disabled when using an external bus. In this case, do not write to this register.
RD07
RD06
RD05
RD04
RD03
RD02
RD01
RD00
7
6
5
4
321
0
RDR0
Address: 00001CH
bit
Initial value
00000000B
RD17
RD16
RD15
RD14
RD13
RD12
RD11
RD10
15
14
13
12
11
10
9
8
RDR1
Address: 00001DH
bit
00000000B
RD67
RD66
RD65
RD64
RD63
RD62
RD61
RD60
7
6
5
4
321
0
RDR6
Address: 00001EH
bit
00000000B
Data register
Direction register
Port I/O
Resistance register
Pull-up resistor (approx. 50 k
)
Internal
data
bus
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