PM7324 Datasheet, PDF (27/473 Pages) PMC-Sierra, Inc – SATURN User Network Interface ATM Layer Solution

S/UNI-ATLAS
DATASHEET
PMC-1971154
Pin Name
ISP[7]
ISP[6]
ISP[5]
ISP[4]
ISP[3]
ISP[2]
ISP[1]
ISP[0]
Type
I/O
ISSUE 7
PM7324 S/UNI-ATLAS
S/UNI-ATM LAYER SOLUTION
Pin Function
No.
AD3 The Ingress VC Table SRAM parity (ISP[7:0]) pins provide parity
AE1 ^{protection over the ISD[63:0] data bus.}
AE2 ^{ISP[0] completes odd parity for ISD[7:0]}
AD4 ^{ISP[1] completes odd parity for ISD[15:8]}
AE3 ^{ISP[2] completes odd parity for ISD[23:16]}
AF1 ^{ISP[3] completes odd parity for ISD[31:24]}
AF2 ^{ISP[4] completes odd parity for ISD[39:32]}
AF3 ^{ISP[5] completes odd parity for ISD[47:40]}
ISP[6] completes odd parity for ISD[55:48]
ISP[7] completes odd parity for ISD[63:56]
ISP[7:0] has the same timing as ISD[63:0]. When data are being
written into the SRAM, the ATLAS generates correct parity.
When data are being read from the SRAM, the ATLAS asserts a
maskable interrupt indication upon parity error detection. No
other action is taken, therefore, the ISP[7:0] may be unconnected
if parity protection is not required.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC AND FOR ITS CUSTOMERS’ INTERNAL USE 19