參數(shù)資料
型號(hào): UPD6124AGS
廠商: NEC Corp.
英文描述: CAP .0039UF 50V PPS FILM 1206 5%
中文描述: 4位單片機(jī)的遙控傳輸
文件頁(yè)數(shù): 12/36頁(yè)
文件大?。?/td> 172K
代理商: UPD6124AGS
μ
PD6124A, 6600A
12
12. PORT REGISTER (P
×
)
K
I/O
, K
I
, and the control register are handled as port registers.
The table below shows the relations between the port registers and pins.
Table 12-1. Relations between Port Registers and Pins
Pin
Name
Input Mode
Output Mode
Read
Write
Read
Write
On Reset
K
I/O
Pin status
Output latch
Pin status
Output latch
Undefined [input mode, output latch]
K
I
Pin status
Input mode
S-IN
Pin status is read by RL A instruction when D
0
of P
1
register = 1.
High impedance (D
0
of P
1
register = 0)
P
10
P
11
P
12
P
00
P
01
P
02
K
I/O7-4
K
I/O3-0
P
0
P
1
P
2
Control register (H)
Control register (L)
K
I3-0
P
1
×
(H)
P
0
×
(L)
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