Migration from MC35 to MC35i
PRELIMINARY
Migration from MC35 to MC35i
12 of 30 12.03.03
4.3 MC35 / MC35i – interface and connector comparison
MC35 and MC35i are equipped with a 40-pin 0.5mm pitch ZIF connector that connects to the
cellular application platform. The ZIF connector is completely the same for both devices.
The host interface incorporates several sub-interfaces described in the following chapters
MC35 and MC35i are totally PIN compatible. Some of the MC35 signal names were
changed on MC35i but the functionality is completely identical with both modules.
The next table shows a ZIF connector - PIN overview
Table 5: Host interface PIN assignment - ZIF connector
Signal Name
Pin No.
Function
IO
MC35 MC35i
1-5 Power supply I VBATT+ BATT+
6-10 Ground Ground GND GND
11-12 Charger I POWER POWER*
13 External supply voltage O VDD VDD
14 Battery Temperature I AKKU_TEMP BATT_TEMP
15 Ignition I /IGT /IGT
16 RS232 O /DSR0 /DSR0_RXD1
17 RS232 O /RING /RING0_TXD1
18 RS232 O /RxD0 /RxD0
19 RS232 I /TxD0 /TxD0
20 RS232 O /CTS0 /CTS0
21 RS232 I /RTS0 /RTS0
22 RS232 I /DTR0 /DTR0
23 RS232 0 /DCD0 /DCD0
24 SIM I CCIN CCIN
25 SIM O CCRST CCRST
26 SIM IO CCIO CCIO
27 SIM O CCCLK CCCLK
28 SIM O CCVCC CCVCC
29 SIM Ground CCGND CCGND
30 RTC Backup I/O VDDLP VDDLP
31 Power Down I /PD /EMERGOFF
32 Synchronization O SYNC SYNC
33 Audio O EPP2 EPP2
34 Audio O EPN2 EPN2
35 Audio O EPP1 EPP1
36 Audio O EPN1 EPN1
37 Audio I MICP1 MICP1
38 Audio I MICN1 MICN1
39 Audio I MICP2 MICP2
40 Audio I MICN2 MICN2
* MC35i supports no charging management
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