SYS68K/CPU-30 R4 Technical Reference Manual
Hardware Description
Page 69
3.10.2 Address Map
of the PI/T #1
Registers
PI/T #1 is accessible via the 8-bit local I/O bus (byte mode). The
following table shows the register layout of the PI/T #1.
3.10.3 I/O Configuration
of PI/T #1
The following table lists all I/O signals connected to PI/T #1. The
functions of these signals are described in the corresponding chapter.
SEE ALSO: Additional information is provided in the PI/T data sheet,
included in Section 4, ‘Circuit Schematics and Data Sheets,’ on
page 115.
Table 24: PI/T #1 Register Layout
Default
I/O Base Address:
Offset:
Name:
$FF80 0000
$0000 0C00
PI_T1
Address
(HEX)
Offset
(HEX)
Reset
Value
Label
Description
FF800C00
FF800C01
FF800C02
FF800C03
FF800C04
FF800C05
FF800C06
FF800C07
FF800C08
FF800C09
FF800C0A
FF800C0B
FF800C0C
FF800C0D
FF800C10
FF800C11
FF800C12
FF800C13
FF800C14
FF800C15
FF800C16
FF800C17
FF800C18
FF800C19
FF800C1A
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
10
11
12
13
14
15
16
17
18
19
1A
00
00
00
00
00
00
00
00
--
--
--
--
--
--
00
0F
--
--
--
--
--
--
--
--
00
PIT1 PGCR
PIT1 PSRR
PIT1 PADDR
PIT1 PBDDR
PIT1 PCDDR
PIT1 PIVR
PIT1 PACR
PIT1 PBCR
PIT1 PADR
PIT1 PBDR
PIT1 PAAR
PIT1 PBAR
PIT1 PCDR
PIT1 PSR
PIT1 TCR
PIT1 TIVR
PIT1 CPR
"
"
"
PIT1 CNTR
"
"
"
PIT1 TSR
Port General Control Register
Port Service Request Register
Port A Data Direction Register
Port B Data Direction Register
Port C Data Direction Register
Port Interrupt Vector Register
Port A Control Register
Port B Control Register
Port A Data Register
Port B Data Register
Port A Alternate Register
Port B Alternate Register
Port C Data Register
Port Status Register
Timer Control Register
Timer Interrupt Vector Register
Counter Preload Register
"
"
"
Count Register
"
"
"
Timer Status Register
Table 25: PI/T #1 Interface Signals
Pin
Function
In/Out
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
Rotary Switch 1
"
"
"
Rotary Switch 2
"
"
"
I
I
I
I
I
I
I
I
☞
Содержание SYS68K/CPU-30 R4
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