9ZXL1231_16 Datasheet, PDF (13/18 Pages) Integrated Device Technology – 12-output DB1200ZL

9ZXL1231 DATASHEET
SMBusTable: PLL Mode, and Frequency Select Register
Byte 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Pin #
5
5
4
Name
PLL Mode 1
PLL Mode 0
P LL_S W_ EN
PLL Mode 1
PLL Mode 0
10 0M_1 33M#
Control Function
PLL Operating Mode Rd back 1
PLL Operating Mode Rd back 0
Res erve d
Res erve d
Enable S/W control of PLL BW
PLL Operating Mode 1
PLL Operating Mode 1
Frequency Select Readback
Type
R
R
RW
RW
RW
R
0
1
See PLL Operating Mode
Readback Table
HW Latch SMBus Control
See PLL Operating Mode
Readback Table
133 MHz
100 MHz
D efault
Latch
Latch
0
0
0
1
1
Latch
Note: Setting bit 3 to '1' allows the user to overide the Latch value from pin 5 via use of bits 2 and 1. Use the values from the PLL Operating Mode
Readback Table. Note that Bits 7 and 6 will keep the value originally latched on pin 5. A warm reset of the system will have to accomplished if the
user changes these bits.
SMBusTable: Output Control R egister
Byte 1
Pin #
Name
Bit 7
47/4 6
DIF_7 _En
Bit 6
43/4 2
DIF_6 _En
Bit 5
39/3 8
DIF_5 _En
Bit 4
35/3 4
DIF_4 _En
Bit 3
30/3 1
DIF_3 _En
Bit 2
26/2 7
DIF_2 _En
Bit 1
21/2 2
DIF_1 _En
Bit 0
17/1 8
DIF_0 _En
Control Function
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
Low/L ow
1
Enable
D efault
1
1
1
1
1
1
1
1
SMBusTable: Output Control R egister
Byte 2
Pin #
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
64/6 3
DIF_1 1_En
Bit 2
59/6 0
DIF_1 0_En
Bit 1
54/5 5
DIF_9 _En
Bit 0
50/5 1
DIF_8 _En
Control Function
Res erve d
Res erve d
Res erve d
Res erve d
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Output Control - '0' overrides OE# pin
Type
RW
RW
RW
RW
0
Low/L ow
1
Enable
D efault
0
0
0
0
1
1
1
1
SMBusTable: Reserved Register
Byte 3
Pin #
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SMBusTable: Reserved Register
Byte 4
Pin #
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Control Function
Type
0
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Control Function
Type
0
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
Res erve d
1
D efault
0
0
0
0
0
0
0
0
1
D efault
0
0
0
0
0
0
0
0
SMBusTable: Vendor & Revision ID Register
Byte 5
Pin #
Name
Bit 7
-
R ID3
Bit 6
-
R ID2
Bit 5
-
R ID1
Bit 4
-
R ID0
Bit 3
-
VID 3
Bit 2
-
VID 2
Bit 1
-
VID 1
Bit 0
-
VID 0
Control Function
REVISION ID
VENDOR ID
Type
R
R
R
R
R
R
R
R
0
1
A rev = 0000
-
-
-
-
-
-
-
-
D efault
X
X
X
X
0
0
0
1
REVISION J 05/25/16
13
12-OUTPUT DB1200ZL