Manual

19
THEORY OF OPERATION
Table 3-1. Plug-In Module Memory Map
Memory Range
C000-C777 Z3, I.D.ROM
C800-CFFF Unused
D000-D7FF Z4, Nonvolatile RAM (NVRAM)
D800-DFFF I/O
D800-DFFF
D800-D9FF Z5, 82C55 PPI
D800 Port A
D801 Port B
D802 Port C
D803 Control
DA00-DBFF Unused
DC00-DDFF Z6, 7528; Dual DAC
DC00-DC03 PEAK LEVEL
DC04-DC07 BASELINE LEVEL
DE00-DFFF B27, 7528; Dual DAC
DEOO-DE03 SPARE
DE04-DE07 EXT DRIVE LEVEL