CMX980AL7 CML Microcircuits, CMX980AL7 Datasheet - Page 19

• Manufacturer Part Number: CMX980AL7
• Description: TETRA Baseband Processor
• Manufacturer: CML Microcircuits

TETRA Baseband Processor
1999 Consumer Microcircuits Limited
Example:
$0x8000 Cmd
$0x8118 Cmd
$0x7300 Cmd
CmdRd $0x73xx
$0xF002 Cmd
$0xF16A Cmd
$0x7000 Cmd
CmdRd $0x7002
$0x7100 Cmd
CmdRd $0x716A
$0x8110 Cmd
To program the fifth and sixth locations of the Auxiliary SRAM with $0x01AA the
commands would be:
; set ConfigCtrl1 all bits Low
; set ConfigCtrl2 bits 7 and 6 Low
; set ConfigCtrl2 bit 4 High
; set ConfigCtrl2 bit 3 High
; read SramData LSB Register
; SramData LSB Register data
; write SramData LSB Register
; write SramData MSB Register
; read SramData LSB Register
; SramData LSB Register data
; read SramData MSB Register
; SramData MSB Register data
; set ConfigCtrl2 bit 3 Low
returned
returned
returned
19
; use default conditions
; required for Page 0 addressing.
; post-increment addresses on a
; enable read/write access to the
; read fourth memory location
; discard this byte
; write $0x02 to fifth memory
; write $0x6A to sixth memory
; read fifth memory location (LSB)
; check this byte is $0x02
; read sixth memory location (MSB)
; check this byte is $0x6A
; disable read/write access to the
read operation
Auxiliary SRAM
(LSB). Post-increment pointer.
location (LSB)
location (MSB)
Auxiliary SRAM
CMX980A
D/980A/3