Samsung S5PC100 User Manual page 931

S5PC100 USER'S MANUAL (REV1.0)
6 I/O DESCRIPTION
Function
Signal
MSM_A[12:0] Input
MSM_CSn Input
MSM_WEn Input
MSM_REn Input
MSM_D[15:0] In/Out
MSM_IRQn Output
ADVn Input
NOTE: Type field indicates whether pads are dedicated to the signal or pads are connected to the multiplexed signals.
7 SOFTWARE INTERFACE AND REGISTERS
This modem interface provides a generic data-exchange method. This interface does not implement any other
complex features except for the interrupt-request/ clear such as automatic FIFO managements, etc. The software
should be responsible for all the other required functionalities for the data exchange between a modem chip and
the AP such as data exchange protocol, data buffer managements, etc.
I/O
Address from MODEM Chip
Chip Select Signal from MODEM Chip
Write Enable Signal from MODEM Chip
Read Enable Signal from MODEM Chip
Data from/to MODEM Chip
Interrupt Request to MODEM Chip
Address Valid from MODEM Chip (Only
Address Muxed mode)
Description
MODEM INTERFACE
Pad
XmsmADDR[12:0]
XmsmCSn
XmsmWEn
XmsmRn
XmsmDATA[15:0]
XmsmIRQn
XmsmADDR[4]
Type
muxed
muxed
muxed
muxed
muxed
muxed
muxed
8.11-9