IDT
TM
/ICS
TM
Ultra Mobile PC/Mobile Internet Device 1423—01/20/09
ICS9UMS9633B
ULTRA MOBILE PC/MOBILE INTERNET DEVICE
16
Advance Information
Byte 8 Reserved
Bit(s) Pin # Name Control Function Type 0 1 Default
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Byte 9 LCD100 PLL N Register
Bit(s) Pin # Name Control Function Type 0 1 Default
Bit 7
LCD100 N Div7 R X
Bit 6
LCD100 N Div6 R X
Bit 5
LCD100 N Div5 R X
Bit 4
LCD100 N Div4 R X
Bit 3
LCD100 N Div3 R X
Bit 2
LCD100 N Div2 R X
Bit 1
LCD100 N Div1 R X
Bit 0
LCD100 N Div0 R X
Byte 10 Status Readback Register
Bit(s) Pin # Name Description Type 0 1 Default
7 37 FSB Frequency Select B R Latch
6 9 FSC Frequency Select C R Latch
5 24 CR0# Readbk Real time CR0# State Indicator R CR0# is Low CR0# is High X
4 28 CR1# Readbk Real time CR1# State Indicator R CR1# is Low CR1# is High X
3 36 CR2# Readbk Real time CR2# State Indicator R CR2# is Low CR2# is High X
2 0
1 0
0 0
Byte 11 Revision ID/Vendor ID Register
Bit(s) Pin # Name Description Type 0 1 Default
7 Rev Code Bit 3 R X
6 Rev Code Bit 2 R X
5 Rev Code Bit 1 R X
4 Rev Code Bit 0 R X
3 Vendor ID bit 3 R 0
2 Vendor ID bit 2 R 0
1 Vendor ID bit 1 R 0
0 Vendor ID bit 0 R 1
Byte 12 Device ID Register
Bit(s) Pin # Name Description Type 0 1 Default
7 DEV_ID3 Device ID MSB R 0
6 DEV_ID2 Device ID 2 R 0
5 DEV_ID1 Device ID 1 R 1
4 DEV_ID0 Device ID LSB R 1
3 0
2 0
1 0
0 0
Reserved
Reserved
Reserved
Vendor ID
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
N Divider Programming Byte9 bit(7:0) and Byte8
bit7
See N-step programming
formula
Reserved
Reserved
Reserved
See Table 1: CPU Frequency
Select Table
Reserved
Revision ID
(0 for A rev)
Vendor specific
