
Page 4
Version 1.2 Dec. 2003
MP18R1624(8)DF0
MN18R1624(8)DF0
Signal
Pins
I/O
Type
Description
Gnd
A7, A8, A9, A10, A11, A12, A13,
A37, A40, A42, A43, A44, A45, A46,
A47, A48, A49, A50, A51, A52, A53,
A54, A55, A56, A57, A58, A79, A82,
A86, A87, A90, A93, A95, A96, A97,
B2, B6, B7, B8, B9, B10, B13, B15,
B16, B17, B18, B19, B20, B39, B40,
B42, B43, B44, B45, B46, B47, B48,
B49, B50, B51, B52, B53, B54, B55,
B56, B57, B58, B59, B60, B77, B80,
B87, B88, B89, B90, B91, B92, B93,
B94, B100
Ground reference for connenctor pads, RDRAM core, and
interface. 79 pads.
CFM
A27
IRSL
Clock from master. Interface clock used for receiving RSL
signals from the Channel. Positive polarity.
CFMN
A28
IRSL
Clock from master. Interface clock used for receiving RSL
signals from the Channel. Negative polarity.
CMD
A63
IVCMOS
Serial command input used to read from and write to the con-
trol registers. Also used for power management.
COL4..
COL0
A30, A72, B31, A73, A32
IRSL
Column bus. 5-bit bus containing control and address infor-
mation for column accesses.
CTM
A69
ORSL
Clock to master. Interface clock used for transmitting RSL
signals to the Channel. Positive polarity.
CTMN
A68
ORSL
Clock to master. Interface clock used for transmitting RSL
signals to the Channel. Negative polarity.
DQA8..
DQA0
A62, B64, A23, B65, A24, B66, A25,
B67, A26
I/O
RSL
Data bus A. A 9-bit bus carrying a byte of read or write data
between the Channel and the RDRAM device. DQA8 is non-
functional on modules with x16 RDRAM devices
DQB8..
DQB0
A78, A77, A36, A76, A35, A75, A34,
A74, A33
I/O
RSL
Data bus B. A 9-bit bus carrying a byte of read or write data
between the Channel and the RDRAM device. DQB8 is non-
functional on modules with x16 RDRAM devices.
ROW2..
ROW0
A70, A29, A71
IRSL
Row bus. 3-bit bus containing control and address information
for row accesses.
SCK
A22
IVCMOS
Serial Clock input. Clock source used to read from and write
to the RDRAM control registers.
NC
B14, B22, A23, B24, B25, B26, B27,
B28, B29, B30, B31, B32, B33, B34,
B35, B36, B37, B38, B62, B63, B64,
B65, B66, B67, B68, B69, B70, B71,
B72, B73, B74, B75, B76
These pads are not connected. These 33 connector pads are
reserved for future use.
SA0
A17
ISVdd
Serial Presence Detect Address 0.
SA1
A18
ISVdd
Serial Presence Detect Address 1.
SA2
A19
ISVdd
Serial Presence Detect Address 2.
SCL
A100
ISVdd
Serial Presence Detect Clock
Table 3 : Module Connector Pad Description