GMSK Modem Data Pump
Page 35 of 37
MX909A PRELIMINARY INFORMATION
WRITE CYCLE (DATA TO MODEM)
ADDRESS
A0, A1
CS
tACSL
WR
tRHCSL
RD
ADDRESS VALID
tAH
tCSH
tCSRWL
tWL
tDSW
DATA
D0 to D7 (1 byte)
DATA
VALID
READ CYCLE (DATA FROM MODEM)
ADDRESS
A0, A1
CS
tACSL
tWHCSL
ADDRESS VALID
tAH
tCSH
WR
RD
DATA
D0 to D7 (1 byte)
tCSRWL
tRL
tRARL
tRACL
tDHR
DATA VALID
tCSHI
tDHW
tCSHI
tRX
Figure 20: µC Parallel Interface Timing Diagram
¤2001 MX-COM, Inc.
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480134.005
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.