參數資料
型號: P89C51RD2
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: 80C51 8-bit Flash microcontroller family
中文描述: 80C51的8位閃存微控制器系列
文件頁數: 24/68頁
文件大小: 404K
代理商: P89C51RD2
Philips Semiconductors
Preliminary data
P89C51RA2/RB2/RC2/RD2xx
80C51 8-bit Flash microcontroller family
8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM
2002 Jul 18
24
80C51 Internal Bus
SBUF
Zero Detector
D S
CL
Write
to
SBUF
TX Control
TX Clock
Send
Shift
Start
S6
RX Control
Start
Shift
Receive
RX Clock
T1
R1
Serial
Port
Interrupt
1 1 1 1 1 1 1 0
Input Shift Register
REN
RI
Load
SBUF
Shift
Shift
Clock
RxD
P3.0 Alt
Output
Function
TxD
P3.1 Alt
Output
Function
SBUF
Read
SBUF
80C51 Internal Bus
RxD
P3.0 Alt
Input
Function
Write to SBUF
S6P2
Send
Shift
RxD (Data Out)
D0
D1
D2
D3
D4
D5
D6
D7
Transmit
TxD (Shift Clock)
TI
S3P1
S6P1
Write to SCON (Clear RI)
RI
Receive
Shift
RxD (Data In)
D0
D1
D2
D3
D4
D5
D6
TxD (Shift Clock)
S5P2
Receive
D7
ALE
S4 . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
S6
. . . .
S1
SU00539
LSB
LSB
MSB
MSB
Figure 14. Serial Port Mode 0
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