ICS9UMS9633BW Datasheet, PDF (13/18 Pages) Integrated Device Technology – ULTRA MOBILE PC CLOCK FOR AUTOMOTIVE USE

ICS9UMS9633BW
ULTRA MOBILE PC CLOCK FOR AUTOMOTIVE USE
Datasheet
Byte
Bit(s)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
8
Pin #
Reserved
Name
Control Function
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Byte
Bit(s)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
9
Pin #
LCD100 PLL N Register
Name
Control Function
LCD100 N Div7
LCD100 N Div6
LCD100 N Div5
LCD100 N Div4
LCD100 = (4MHz x N)/4
LCD100 N Div3
Default frequency is (4 x 64h)/4 = 100MHz
LCD100 N Div2
LCD100 N Div1
LCD100 N Div0
Byte
Bit(s)
7
6
5
4
3
2
1
0
10
Pin #
37
9
24
28
36
Status Readback Register
Name
FSB
FSC
CR0# Readbk
CR1# Readbk
CR2# Readbk
Description
Frequency Select B
Frequency Select C
Real time CR0# State Indicator
Real time CR1# State Indicator
Real time CR2# State Indicator
Reserved
Reserved
Reserved
Byte
Bit(s)
7
6
5
4
3
2
1
0
11
Pin #
Revision ID/Vendor ID Register
Name
Rev Code Bit 3
Rev Code Bit 2
Rev Code Bit 1
Rev Code Bit 0
Vendor ID bit 3
Vendor ID bit 2
Vendor ID bit 1
Vendor ID bit 0
Description
Revision ID
(0 for A rev)
Vendor ID
Byte
Bit(s)
7
6
5
4
3
2
1
0
12
Pin #
Device ID Register
Name
DEV_ID3
DEV_ID2
DEV_ID1
DEV_ID0
Description
Device ID MSB
Device ID 2
Device ID 1
Device ID LSB
Reserved
Reserved
Reserved
Reserved
IDT^TM/ICS^TM Ultra Mobile PC Clock for Automotive use
13
Type
0
1
Default
0
0
0
0
0
0
0
0
Type
R
R
R
R
R
R
R
R
0
1
Write Byte 9 to 64h BEFORE
enabling N programming
Default
1
0
0
1
0
1
1
0
Type
R
R
R
R
R
0
1
See Table 1: CPU Frequency
Select Table
CR0# is Low CR0# is High
CR1# is Low CR1# is High
CR2# is Low CR2# is High
Default
Latch
Latch
X
X
X
0
0
0
Type
R
R
R
R
R
R
R
R
0
1
Vendor specific
Default
X
X
X
X
0
0
0
1
Type
0
R
R
R
R
1
Default
0
0
1
1
0
0
0
0
1425A—09/02/09