參數(shù)資料
型號(hào): MB90653APFV
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁(yè)數(shù): 34/106頁(yè)
文件大小: 873K
代理商: MB90653APFV
MB90650A Series
33
(4) Port Resistance Registers
Register configuration
Block diagram
RD07
RD06
RD05
RD04
RD03
RD02
RD01
RD00
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Initial value Access
00000000 B R/W
Initial value Access
00000000 B R/W
Initial value Access
00000000 B R/W
RD17
RD16
RD15
RD14
RD13
RD12
RD11
RD10
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
RD67
RD66
RD65
RD64
RD63
RD62
RD61
RD60
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Address : 00001CH
Port 0 resistance register (RDR0)
Address : 00001DH
Port 1 resistance register (RDR1)
Address : 00001EH
Port 6 resistance register (RDR6)
R/W : Readable and writable
Data register
Direction register
Port I/O
Resistance register
Pull-up resistor (approx. 50 k
)
Internal
data
bus
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 mode. In this case, do not write to this register.
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