Programming Model
MOTOROLA
AHB to IP Bus Interface (AIPI)
7-15
7.2.3 Peripheral Control Register
These registers are to tell the AIPI whether or not the IP bus peripheral corresponding to the bit location in
the register can be accessed in their natural size only. When set to 1, only byte access is allowed on an 8-bit
peripheral, only halfword access is allowed on a 16-bit peripheral, and only word access is allowed on a
32-bit peripheral. When set to 1, any access other than natural size that is attempted on the peripheral
results in an error response and no IP bus activity occurs.
The least significant bit in the PCR is a read-only bit and the AIPI registers are not governed by this bit.
Bits 31 through 16 in both registers are preset to 0 and the fields are reserved and can only be read.
Table 7-10. Peripheral Access Register Description
Name
Description
Settings
Reserved
Bits 31–16
Reserved—These bits are reserved and should read 1.
ACCESS
Bits 15–1
Access Control
—Each bit controls the access mode of the
corresponding peripheral.
0 = Assigned peripheral
determines access
mode.
1 = the corresponding
peripheral is a
supervisor access
only peripheral.
Reserved
Bit 0
Reserved—This bit is reserved and should read 1.
PCR_1
PCR_2
AIPI1 Peripheral Control Register
AIPI2 Peripheral Control Register
Addr
0x0020000C
0x0021000C
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE
PCR_1
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
PCR_2
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ACCESS_MODE
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
r
PCR_1
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
PCR_2
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Содержание DragonBall MC9328MX1
Страница 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Страница 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Страница 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Страница 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Страница 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Страница 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Страница 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Страница 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Страница 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Страница 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Страница 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Страница 542: ...20 64 MC9328MX1 Reference Manual MOTOROLA Multimedia Card Secure Digital Host Controller Module MMC SD ...
Страница 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Страница 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Страница 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
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Страница 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Страница 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Страница 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
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