2.5.3 EXFUNC BOARD
EXFUNC BOARD
The EXFUNC board allows JBIG compression and some additional features
become available. In addition, this board expands the SRAM capacity.
QM Coder
• 2 QM coders for JBIG compression and decompression.
PAL (PALCE16V8H-15PC)
• 2 PALs make a strobe control signal. This is used for DMA selection.
SRAM
• 512KB SRAM for telephone numbers and other user parameters.
Lithium battery
• Backs up the SRAM.
Switches
Item
SW1
Switches the backup battery on/off
SM
S R A M
Q M - C O D E R _ 1
D M A B U S
P A L _ 1
P A L _ 2
Description
2-13
PCBS
Q M - C O D E R _ 2
A874D505.WMF
A874