PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
9.5 SDRAM I/F (35 Signals)
Pin Name
Type
Pin
No.
Function
CBCSB
Output AB6
The Cell Buffer SDRAM Chip Select Bar (CBCSB)
is an active low signal used to control the SDRAM.
CBCSB, CBRASB, CBCASB, and CBWEB define
the command being sent to the SDRAM.
The CBCSB output is updated on the rising edge of
SYSCLK.
CBRASB
CBCASB
CBWEB
Output AB7
The Cell Buffer SDRAM Row Address Strobe Bar
(CBRASB) is an active low signal used to control the
SDRAM.
CBCSB, CBRASB, CBCASB, and CBWEB define
the command being sent to the SDRAM.
The CBRASB output is updated on the rising edge
of SYSCLK.
The Cell Buffer SDRAM Column Address Strobe
Bar (CBCASB) is an active low signal used to
control the SDRAM.
Output W6
Output Y8
CBCSB, CBRASB, CBCASB, and CBWEB define
the command being sent to the SDRAM.
The CBCASB output is updated on the rising edge
of SYSCLK.
The Cell Buffer SDRAM Write Enable Bar
(CBWEB) is an active low signal used to control the
SDRAM.
CBCSB, CBRASB, CBCASB, and CBWEB define
the command being sent to the SDRAM.
The CBWEB output is updated on the rising edge of
SYSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
28
PMC [ PMC-SIERRA, INC ]
