參數(shù)資料
型號(hào): TS68230
廠商: 意法半導(dǎo)體
英文描述: HMOS PARALLEL INTERFACE/TIMER
中文描述: HMO的并行接口/定時(shí)器
文件頁(yè)數(shù): 7/61頁(yè)
文件大?。?/td> 2911K
代理商: TS68230
Table 1.2 :
Signal Summary
.
SignalName
Input/Output
ActiveState
Edge/Level
Sensitive
Falling and Rising
Edge
Level
Level
OutputStates
CLK
Input
CS
D0-D7
DMAREQ
DTACK
H1(H3)***
H2(H4)**
PA0-PA7**, PB0-PB7**,
PC0-PC7
PIACK
PIRQ
RS1-RS5
R/W
RESET
TIACK
TIN (external clock)
TIN (run/halt)
TOUT (square wave)
TOUT (TIRQ)
*
Pullup resistors required.
**
Note these pins have internal pullup resistors.
Input
Low
Input/output
Output
Output
Input
Input or Output
Input/output,
Input or Output
Input
Output
Input
Input
Input
Input
Input
Input
Output
Output
High = 1, Low = 0
Low
Low
Low or High
Low or High
High = 1, Low = 0
High, Low, High Impedance
High, Low
High,
Low,
High Impedance*
Asserted Edge
Asserted Edge
Level
High, Low, High Impedance
High, Low, High Impedance
Low
Low
Level
Low, High Impedance*
High = 1, Low = 0
High Read, Low Write
Low
Low
Level
Level
Level
Level
Rising Edge
Level
High
Low
Low
High, Low
Low, High Impedance*
Figure 1.3 :
Logical Pin Connection.
TS68230
7/61
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