PM7312 pmc-sierra, PM7312 Datasheet - Page 47

• Manufacturer Part Number: PM7312
• Description: Freedm 32a1024l Assp Telecom Standard Datasheet
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021833, Issue 2
Pin Name
RSTB
PMCTEST
DLLTEST
SCAN_EN
TCK
TMS
TDI
TDO
TRSTB
Table 9 Power and Ground Signals
Pin Name
VDD3V3
Type
Type
Input
Input
Input
Input
Input
Input
Input
Tristate
Output
Input
Power
Pin No.
H3
H4
H2
D13
G3
G4
H5
G1
F2
Pin No.
A1
A31
B2
B30
C3
C4
C16
C28
C29
D3
D4
D16
FREEDM 32A1024L ASSP Telecom Standard Product Data Sheet
Function
Function
The active low reset signal (RSTB) signal provides an
asynchronous FREEDM 32A1024L reset. RSTB is an
asynchronous input. When RSTB is set low, all FREEDM
32A1024L registers are forced to their default states. This signal
must be held low for a minimum of 320ns. In addition, all SBI, APPI
and µP interface output pins are forced tristate and will remain
tristated until RSTB is set high.
RSTB must be asserted until the SDRAMs are out of reset.
The PMC production test enable signal (PMCTEST) places the
FREEDM 32A1024L in scan mode. PMCTEST must be tied low for
normal operation (and during BIST).
The DLL test enable signal (DLLTEST) places the DLL in scan
mode. DLLTEST must be tied low for normal operation (and during
BIST).
The PMC Production SCAN_EN signal is used during scan mode.
It must be tied low for normal operation.
The test clock signal (TCK) provides timing for test operations that
can be carried out using the IEEE P1149.1 test access port. TMS
and TDI are sampled on the rising edge of TCK. TDO is updated
on the falling edge of TCK.
The test mode select signal (TMS) controls the test operations that
can be carried out using the IEEE P1149.1 test access port. TMS
is sampled on the rising edge of TCK. TMS has an integral pull up
resistor.
The test data input signal (TDI) carries test data into the FREEDM
32A1024L via the IEEE P1149.1 test access port. TDI is sampled
on the rising edge of TCK.
TDI has an integral pull up resistor.
The test data output signal (TDO) carries test data out of the
FREEDM 32A1024L via the IEEE P1149.1 test access port. TDO
is updated on the falling edge of TCK. TDO is a tristate output,
which is inactive except when scanning of data is in progress.
The active low test reset signal (TRSTB) provides an
asynchronous FREEDM 32A1024L test access port reset via the
IEEE P1149.1 test access port. TRSTB is an asynchronous input
with an integral pull up resistor.
Note that when TRSTB is not being used, it must be connected to
the RSTB input.
The VDD3V3 pins should be connected to a well decoupled +3.3 V
DC supply. These power pins provide DC current to the I/O pads
Released
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