User Guide

CCS Technical Documentation Schematics RH-12/RH-28
Issue 1 02/04 Copyright Nokia 2003. All rights reserved. Page A-19
MMC Interface, v. 2.1, ed. 79
EMIF02-MMC R1/R2/R3/R4=47R
data
MMC Card Connections
ON / OFF CONTROL
1 = active / 0 = Shutdown
EMIF02-MMC R10=13k (therefore only suitable for command line)
EMIF02-MMC R20=56k (therefore only suitable for data line)
cmd
Not final connector
reserved
command
UEME includes a 13k pullup between GEN28IO2 (command) and VAUX1
so EMIF02-MMC R10 is left unconnected. UEME has no pullup on GEN28IO3 (MMC data)
clk
cmd
data
Command pullup resistance 4.7k to 100k
Data pullup resistance 50k to 100k
GNDGND
ground
+ve supply
clock
ground
clk
NOTE: The MMC specification imposes the following impedance limits
Power Mode
1 = Active / 0 = Sleep(3mA MAX)
data
GND
GND
GND GND
VMMC
R1
R3
R2
EMIF04-MMC02F2
R910
R4
R20
R10
X910
1
2
3
4
5
6
7
VMMC
GND
3
2
0
1
100n
C910
SIM2MMCIF(3:0)