Programming Model
MOTOROLA
SDRAM Memory Controller
24-17
24.5.3 Miscellaneous Register
Code Example 24-1 is a programming example for SyncFlash read-device configurations.
Code Example 24-1. Read-Device
HWSF_read_device_ID
ldr
r2, 0x80000001
//force ma0 to 1
ldr r8,
0x00221014
str r2,(r8)
ldr
r8, 0x0c000000
//read SyncFlash device ID
ldrh r2,
(r8,0)
ldr r1,
0x00d3
cmp r1,
r2
bt ERROR_OUT
ldr
r2, 0x00000000
//release ma0
ldr r8,
0x00221014
str r2,(r8)
MISCELLANEOUS
Miscellaneous Register
Addr
0x00221014
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
OMA
TYPE
rw
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
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
RMA0
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 24-10. Miscellaneous Register Description
Name
Description
Settings
OMA
Bit 31
Multiplexed Address Override
—Enables/Disables the MA0 pin to
be a meaningful bit. The multiplexed address, original MA0, is
always zero at read access in 16-bit port memory configuration. This
introduces difficulty with the SyncFlash read-device configuration
which requires that the address ranges from 0 to 3. Working with bit
0 in tandem, this overrides the original MA0 generated by the
internal address multiplexer during the 16-bit SyncFlash read-device
configuration command.
0 = Address from internal
address multiplexed is
routed out to MA0
1 = Force RMA0, bit 0, out to
MA0 pin
Reserved
Bits 30–1
Reserved—These bits are reserved and should read 0.
RMA0
Bit 0
MA0 Replacement
—Contains value of MA0 when OMA is set.
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...