ICS9ZX21901CKLFT Datasheet, PDF (11/16 Pages) Integrated Device Technology – 19-Output Differential Zbuffer for PCIe Gen2/3 and QPI

9ZX21901C
19-Output Differential Zbuffer for PCIe Gen2/3 and QPI
SMBusTable: PLL Mode, and Frequency Select Register
Byte 0 Pin #
Name
Control Function
Bit 7
5
PLL Mode 1
PLL Operating Mode Rd back 1
Bit 6
5
PLL Mode 0
PLL Operating Mode Rd back 0
Bit 5
72/71
DIF_18_En
Output Control overrides OE# pin
Bit 4
70/69
DIF_17_En
Output Control overrides OE# pin
Bit 3
67/66
DIF_16_En
Output Control overrides OE# pin
Bit 2
Reserved
Bit 1
Reserved
Bit 0
4
100M_133M#
Frequency Select Readback
SMBusTable: Output Control Register
Byte 1 Pin #
Name
Bit 7
39/38
DIF_7_En
Bit 6
35/36
DIF_6_En
Bit 5
32/33
DIF_5_En
Bit 4
29/30
DIF_4_En
Bit 3
27/28
DIF_3_En
Bit 2
24/25
DIF_2_En
Bit 1
22/23
DIF_1_En
Bit 0
19/20
DIF_0_En
Control Function
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
SMBusTable: Output Control Register
Byte 2 Pin #
Name
Bit 7
65/64
DIF_15_En
Bit 6
62/61
DIF_14_En
Bit 5
60/59
DIF_13_En
Bit 4
56/55
DIF_12_En
Bit 3
53/52
DIF_11_En
Bit 2
50/49
DIF_10_En
Bit 1
47/46
DIF_9_En
Bit 0
42/41
DIF_8_En
Control Function
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
Output Control overrides OE# pin
SMBusTable: Output Enable Pin Status Readback Register
Byte 3 Pin #
Name
Control Function
Bit 7
57
OE_RB12
Real Time readback of OE#12
Bit 6
54
OE_RB11
Real Time readback of OE#11
Bit 5
51
OE_RB10
Real Time readback of OE#10
Bit 4
48
OE_RB9
Real Time readback of OE#9
Bit 3
43
OE_RB8
Real Time readback of OE#8
Bit 2
40
OE_RB7
Real Time readback of OE#7
Bit 1
37
OE_RB6
Real Time readback of OE#6
Bit 0
34
OE_RB5
Real Time readback of OE#5
Type
R
R
RW
RW
RW
R
0
1
See PLL Operating Mode
Readback Table
Hi-Z
Enable
Hi-Z
Enable
Hi-Z
Enable
133MHz
100MHz
Default
Latch
Latch
1
1
1
0
0
Latch
Type
0
1
Default
RW
1
RW
1
RW
1
RW
Hi-Z
Enable
1
RW
1
RW
1
RW
1
RW
1
Type
0
1
Default
RW
1
RW
1
RW
1
RW
Hi-Z
Enable
1
RW
1
RW
1
RW
1
RW
1
Type
R
R
R
R
R
R
R
R
0
OE# pin Low
1
OE# Pin High
Default
Real time
Real time
Real time
Real time
Real time
Real time
Real time
Real time
IDT^® 19-Output Differential Zbuffer for PCIe Gen2/3 and QPI
11
1648H- 12/08/11