參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強(qiáng)的超級I / O控制器,快速紅外線
文件頁數(shù): 99/173頁
文件大?。?/td> 965K
代理商: 37C672
3802 GROUP USER’S MANUAL
1-16
HARDWARE
Fig. 12 Port block diagram (single-chip mode) (1)
(1) Ports P0, P1, P2, P32–P37
Direction register
Data bus
Port latch
(2) Ports P30, P31
(3) Ports P40–P43, P57
Direction register
Data bus
Port latch
Serial I/O1 input
Serial I/O1 enable bit
Receive enable bit
(4) Port P44
(5) Port P45
(6) Port P46
Direction register
Data bus
Port latch
Serial I/O1 ready output
Serial I/O1 enable bit
SRDY1 output enable bit
Serial I/O1 mode selection bit
(7) Port P47
(8) Port P50
Serial I/O2 input
Direction register
Data bus
Port latch
D–A conversion output
DA1 output enable bit (P30)
DA2 output enable bit (P31)
Direction register
Data bus
Port latch
Interrupt input
Direction register
Data bus
Port latch
Serial I/O1 output
Serial I/O1 enable bit
Transmit enable bit
P45/TXD P-channel output disable bit
Direction register
Data bus
Port latch
Serial I/O1 clock output
Serial I/O1 mode selection bit
Serial I/O1 enable bit
Serial I/O1 synchronous
clock selection bit
Serial I/O1
external
clock input
Direction register
Data bus
Port latch
FUNCTIONL DESCRIPTION
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