PI7C9X110 Pericom Semiconductor Corporation, PI7C9X110 Datasheet - Page 137

• Manufacturer Part Number: PI7C9X110
• Description: Pcie-to-pci Reversible Bridge
• Manufacturer: Pericom Semiconductor Corporation

14.4 BOUNDARY SCAN REGISTER
14.5 JTAG BOUNDARY SCAN REGISTER ORDER
This register identifies Pericom as the manufacturer of the device and details the part number and revision number
for the device.
Table 14-2 JTAG device ID register
The boundary scan register has a set of serial shift-register cells. A chain of boundary scan cells is formed by
connected the internal signal of the PI7C9X110 package pins. The VDD, VSS, and JTAG pins are not in the
boundary scan chain. The input to the shift register is TDI and the output from the shift register is TDO. There are 4
different types of boundary scan cells, based on the function of each signal pin.
The boundary scan register cells are dedicated logic and do not have any system function. Data may be loaded into
the boundary scan register master cells from the device input pins and output pin-drivers in parallel by the
mandatory SAMPLE and EXTEST instructions. Parallel loading takes place on the rising edge of TCK.
Pericom Semiconductor
Table 14-3 JTAG boundary scar register definition
Bit
31:28
27:12
11:1
0
Register Number
Boundary Scan
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
0
1
2
3
4
5
6
7
8
9
Type
RO
RO
RO
RO
Pin Name
CBE [0]
AD [10]
AD [11]
AD [12]
AD [13]
AD [0]
AD [1]
AD [2]
AD [3]
AD [4]
AD [5]
AD [6]
AD [7]
AD [8]
AD [9]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Value
01h
E110h
23Fh
1b
Page 137 of 145
Ball Location
K14
H12
H13
G11
G12
G14
E13
D11
D12
F11
F13
F14
J11
J13
J14
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Description
Version number
Last 4 digits (hex) of the die part number
Pericom identifier assigned by JEDEC
Fixed bit equal to 1’b1
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
Type
May 2008, Revision 2.6
PCIe-to-PCI Reversible Bridge
Tri-state Control Cell
11
13
15
17
19
21
23
25
27
29
PI7C9X110
1
3
5
7
9
-
-
-
-
-
-
-
-
-
-
-
-
-
-