User Manual

Address Mapping of the 7522A/7524/7527
Device Address mapping
Flash ROM 512K: from 8000:0000 to F000: FFFF
SRAM 256K: from 0000:0000 to 3000:FFFF
COM1 BASE 0XFF80 to 0XFF88
COM2 BASE 0XFF10 to 0XFF18
Interrupt No. Interrupt mapping
0 Divided by zero
1 Trace
2 NMI
3 Break point
4 Detected overflow exception
5 Array bounds exception
6 Unused opcode exception
7 ESC opcode exception
8 Timer 0
9 Reserved
0A DMA-0
0B DMA-1
0C \INT0 of I/O expansion bus
(COM3 for7522A&7524) (COM3/6 for7527)
0D \INT1 of I/O expansion bus
(COM4 for7524) (COM4/7 for7527)
10 \INT4 of I/O expansion bus
(COM5 for7524) (COM5/8 for7527)
11 COM2
12 Timer 1
13 Timer 2
14 COM1
7521/2/2A/3/4/7 Series Hardware User’s Manual, Ver. 1.5 Sep/2002, 7Mh-001-15 -----46