User`s guide

4-12 Intel
®
StrongARM
®
SA-1110 Microprocessor Development Board User’s Guide
Hardware Considerations
7 CF_Bus_On
Compact Flash bus on
0 – CF BUS ON
1 – CF BUS off (float)
Must be programmed to 0 when Xbus daughter boards are present
Must be programmed to 1 when system goes to sleep
8 Audio_On
Audio power on
0 – UDA1341, MIC and DAA power off
1 – UDA1341, MIC and DAA power on
Must be programmed to 0 when system goes to sleep.
Note that the UCB1300 has its own internal power down modes and is not controlled by
this signal.
9 Light
Backlight
0 – Backlight off
1 – Backlight on
Must be programmed to 0 when system goes to sleep
10 LCD12or16
LCD 12bpp or 16bpp output select
Configures the PZ3128 CPLD to map the SA-1110 LCD data pins as 12 bit RGB444 or 16
bit RGB565.
0 – 16RGB
1 – 12RGB
11 LCD On
LCD power on
0 – LCD and control logic power off
1 – LCD and control logic power on
Must be programmed to 0 when system goes to sleep
12 RS232En
RS 232 transceiver enable
Controls power on RS232 level converters.
0 – RS232 force power off
1 – RS232 enable auto power on
Must be programmed to 0 when system goes to sleep
13 D9_LED
Red LED
0 – LED on
1 – LED off
Application dependant. General application usage. May be used by developers as
general-purpose indicator or as a scope trigger.
Must be programmed to 1 when system goes to sleep.
Table 4-6. Board Control Register (Sheet 2 of 4)
0x1200,0000 Board Control Register SA-1110 Evaluation Module
Bit
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9 8 7 6 5 4 3 2 1 0
Reserved
Spk_Off Rad_On
Qmute
TV_IR_Dec_En
SMB_En
Rad_WU
COM_RTS
COM_DTR
Vib_On
D8_LED D9_LED
RS232En
LCD On
LCD12or16
Light
Audio_On
CF_Bus_On
Stereo_LB
IRDA_MD[1:0]
IRDA_FSEL
SOFT_RST
CF_RST GFX_RST
CF_PWR NEP_RST
Reset X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
Bits Name Description