User Guide

Nokia Customer Care System Module
Company Confidential RH-21
Issue 2 07/2004  2004 Nokia Corporation. Page 31
MEMORY Block Interfaces
RIP
Signal
name
Connected
from - to
I/O
Signal Properties
A/D Levels-Freq./
Timing resolution
Description / Notes
MEMADDA(23:0)* External Memory Access / Data Bus
0-
15
EXTADDA
0:15
Mem-
ory
UPP In/
Out
Dig 0/1.8V 25 / 150
ns
Burst Flash Address (0:15) &
Data (0:15)
Direct Mode Address (0:7)
16
-
23
EXTAD
16:23
Mem-
ory
UPP In Dig 0/1.8V 25 / 150
ns
Burst Flash Address (16:23)
Direct mode Data (8:15)
MEMCONT(9:0) External Memory Control Bus
0 ExtWrX Memo
ry_WE
UPP In Dig 0-1.8V Write Strobe
1 ExtRdX Memo
ry_OE
UPP In Read Strobe
2
3 (FlsBAAX)
VPPCTRL
Mem-
ory
(VPP)
UPP In VPP = 1.8V, => VIO used
internally for VPP
VPP = 5/12V, VPP used
4 FlsPS Mem-
ory PS
UPP In/
Out
25 ns Burst Mode Flash Data
Invert
Direct Mode Address (17)
5 FlsAVDX Memo
ry_AV
D
UPP In Flash Addr Data Valid/ Latch
Burst Addr
Direct Mode Address (18)
6FlsCLK Mem-
nory
CLK
UPP In 50 MHz Burst Mode Flash Clock
Direct Mode Address (19)
7FlsCSX Memo
ry_CE
UPP In Flash Chip Select
8FlsRDY Mem-
ory
RDY
UPP Out Ready Signal for Flash
9 FlsRSTX Memo
ry_RP
UPP Out Flash reset, 0 active
(FLSRPX)
GENIO(28:0) General I/O Pin used for extra control
23 FLSWRPX Memo
ry_W
P
UPP Out Dig 0/1.8V 0 Write Protect, 0-active pro-
tected.
Globals Power supplies and production test pad