PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 243
PM8611-BIAP
Manufacturer Part Number
PM8611-BIAP
Description
Manufacturer
PMC [PMC-Sierra, Inc]
Datasheet
1.PM8611-BIAP.pdf
(292 pages)
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12.2
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
DBCTRL
PMCTST
PMCATST
JTAG Test Port
The SBSLITE JTAG Test Access Port (TAP) allows access to the TAP controller and the 4 TAP
registers: instruction, bypass, device identification and boundary scan. Using the TAP, device
input logic levels can be read, device outputs can be forced, the device can be identified and the
device scan path can be bypassed. For more details on the JTAG port, please refer to the
Operations section.
Table 25 Instruction Register (Length - 3 bits)
Instructions
EXTEST
IDCODE
SAMPLE
BYPASS
BYPASS
STCTEST
BYPASS
BYPASS
The DBCTRL bit is used to pass control of the data bus drivers to the CSB pin. When the
DBCTRL bit is set to logic one and PMCTST is set to logic one, the CSB pin controls the
output enable for the data bus. While the DBCTRL bit is set, holding the CSB pin high
causes the SBSLITE to drive the data bus and holding the CSB pin low tri-states the data bus.
The DBCTRL bit overrides the HIZDATA bit. The DBCTRL bit is used to measure the drive
capability of the data bus driver pads.
The PMCTST bit is used to configure the SBSLITE for PMC's manufacturing tests. When
PMCTST is set to logic one, the SBSLITE microprocessor port becomes the test access port
used to run the PMC "canned" manufacturing test vectors. The PMCTST bit can be cleared
by setting CSB to logic one or by writing logic zero to the bit.
The PMCATST bit is used to configure the analog portion of the SBSLITE for PMC's
manufacturing tests.
Selected Register
Boundary Scan
Identification
Boundary Scan
Bypass
Bypass
Boundary Scan
Bypass
Bypass
SBSLITE™ Telecom Standard Product Data Sheet
Instruction Codes,
IR[2:0]
000
001
010
011
100
101
110
111
Preliminary
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