PM5364 pmc-sierra, PM5364 Datasheet - Page 47

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Pin Name
D[15]
D[14]
D[13]
D[12]
D[11]
D[10]
D[9]
D[8]
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
A[14]/TRS
A[13]
A[12]
A[11]
A[10]
A[9]
A[8]
A[7]
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
A[0]
ALE
INTB
Type
I/O
Input
Input
Open
Drain
Output
Pin No.
AD2
AD1
AC2
AB3
AB2
AB1
AA3
AA2
AA1
Y4
Y3
Y2
W4
W2
W1
V4
AM6
AL6
AN5
AJ4
AK2
AJ3
AJ2
AJ1
AH3
AH2
AH1
AG2
AF4
AF3
AF2
AN6
V3
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Function
Microprocessor Data Bus. The bi-directional data
bus, D[15:0], is used during TUPP 2488
Microprocessor Interface Port register reads and
write accesses. D[15] is the most significant bit of
the data words and D[0] is the least significant bit.
D[15:0] pins are implemented with programmable
drive I/O. They are controlled by VDDOPROG_M.
Microprocessor Address Bus. The
microprocessor address bus, A[14:0], selects
specific Microprocessor Interface Port registers
during TUPP 2488 register accesses.
A[14] is also the Test Register Select (TRS)
address pin and selects between normal and test
mode register accesses. TRS is set high during
test mode register accesses, and is set low during
normal mode register accesses.
Address Latch Enable. The address latch enable
signal, ALE, is active high and latches the address
bus (A[14:0]) when it is set low. The internal
address latches are transparent when ALE is set
high. ALE allows the TUPP 2488 to interface to a
multiplexed address/data bus. ALE has an internal
pull-up resistor of 30 to 50 kOhms. It is
recommended to use an external pull-up resistor of
4.7 kOhms.
Interrupt Request Bar. The active low interrupt
enable signal, INTB, output goes low when a TUPP
2488 interrupt source is active and that source is
unmasked. INTB returns high when the interrupt is
acknowledged via an appropriate register access.
INTB is an open drain output. It is recommended to
use an external pull-up resistor of 4.7 kOhms on
this output signal.
Released
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