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TS68230 датащи(PDF) 9 Page - STMicroelectronics

номер детали TS68230
подробное описание детали  HMOS PARALLEL INTERFACE/TIMER
PDF  61 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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TS68230 датащи(HTML) 9 Page - STMicroelectronics

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1.3. REGISTER MODEL
A register model that includes the corresponding register selects is shown in table 1.3.
Table 1.3 : Register Model.
Register
Select Bits
54321
76543210
Register
Value
after
RESET
(hex
value)
00000
Port Mode
Control
H34
Enable
H12
Enable
H4
Sense
H3
Sense
H2
Sense
H1
Sense
0 0
Port General
Control Register
00001
V
SVCRQ
Select
IPF
Select
Port Interrupt
Priority Control
0 0
Port Service
Request Register
00010
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
0 0
Port A Data
Direction Register
00011
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
0 0
Port B Data
Direction Register
00100
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
0 0
Port C Data
Direction Register
00101
Interrupt Vector
Number
VV
0 F
Port Interrupt
Vector Register
00110
Port A
Submode
H2 Control
H2
Int
Enable
H1
SVCRQ
Enable
H1
Stat
Ctrl
0 0
Port A Control
Register
00111
Port B
Submode
H4 Control
H4
Int
Enable
H3
SVCRQ
Enable
H3
Stat
Ctrl
0 0
Port B Control
Register
01000
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
VV
Port A Data
Register
01001
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
VV
Port B Data
Register
01010
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
VVV
Port A Alternate
Register
01011
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
VVV
Port B Alternate
Register
01100
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
VVVV
Port C Data
Register
01101
H4
Level
H3
Level
H2
Level
H1
Level
H4S
H3S
H2S
H1S
VVVV
Port Status
Register
01110
VVVVVVVV
0 0
(null)
01111
VVVVVVVV
0 0
(null)
* Unused, read as zero.
** Value before RESET.
*** Current value on pins.
TS68230
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