PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
Pin Name
Type
Input
Pin Function
No.
TDAT[15]
TDAT[14]
TDAT[13]
TDAT[12]
TDAT[11]
TDAT[10]
TDAT[9]
TDAT[8]
TDAT[7]
TDAT[6]
TDAT[5]
TDAT[4]
TDAT[3]
TDAT[2]
TDAT[1]
TDAT[0]
H21 The Transmit Cell Data (TDAT[15:0]) signals carry
H20 the ATM cell octets that are transferred to the
F19 internal cell buffer. When this interface is operating
G22 in 8-bit mode, only TDAT[7:0] is used.
G21
The TDAT[15:0] input bus is sampled on the rising
F22
edge of TCLK.
G20
F21
E22
C20
E21
C22
E20
D21
C21
B22
TPRTY
Input
D20 The Transmit Parity (TPRTY) signal provides the
parity (programmable for odd or even parity) of the
TDAT[15:0] bus. The TPRTY signal is considered
valid only when valid data and inband address are
transferring as indicated by the TENB signal
asserted low or the TSX signal asserted high. When
this interface is operating in 8-bit mode, this signal
provides the parity of TDAT[7:0].
A parity error is indicated by a status bit and a
maskable interrupt.
The TPRTY input signal is sampled on the rising
edge of TCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
23
PMC [ PMC-SIERRA, INC ]
