TMP92CF30
2009-06-12
92CF30-102
3.7.6
Port 8 (P80 to P83, P86, P87)
Port 8 is 6-bit output ports. Resetting sets the output latch of P82 to “0” and the output
latches of P80 to P81, P83, P86 and P87 to “1”.
Port 8 can also be set to function as an interface-pin for external memory using function
register P8FC.
Writing “1” in the corresponding bit of P8FC and P8FC2 enables the respective
functions.
Resetting P8FC to “0” and P8FC2 to “0”, sets all bits to output ports.
Figure 3.7.12 Port 8
P80 (
0
CS )
P81 (
1
CS , SDCS )
P82 (
2
CS , CSZA , SDCS )
P83 (
3
CS , CSXA )
P86 ( CSZD ,
CE
0
ND
)
P87 ( CSXB ,
CE
1
ND
)
Function
control
Output latch
P8 read
Reset
0
CS ,
1
CS ,
2
CS ,
3
CS , CSZD , CSXB
Selector
P8FC write
P8 write
S
Function
control2
P8FC2 write
“1”, SDCS , CSZA , CSXA ,“1”, “1”
0
CS
,
SDCS
,
SDCS
,
CSXA
,
CE
0
ND
,
CE
1
ND
Internal dat
a
bus
Содержание TLCS-900/H1 Series
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