TECHNICAL NOTES ON THE EEC-IV MCU - Auto diagnostics

Priority: Interrupt 16-Bit Address
At Reset, PC = 0x2000 in Memory Bank #8
High High-Speed Input #1 0x201C
High HSO Port Output Interrupt #1 0x201A
Low External Interrupt 0x2018
Low HSI Port Input Data Available 0x2016
Low A/D End-Of-Conversion 0x2014
Low Master I/O Timer Overflow 0x2012
Lowest HSO Port Output Interrupt #2 0x2010
Table 13: 8061 Interrupt Vectors and Priorities
addr READ WRITE
0000:0001 ZERO R/O
0002 LOW SPEED I/O
uni-directional
0003 I/O bi-directional
0004: A/D LO A/D channel #
0005: A/D HI watchdog timer
0006:0007 I/O timer R/O
0008: INTERRUPT MASK
bit 7: HSI0
bit 6: HSI1
INTERRUPT MASK
0009:
bit 5: HSO output int 1
bit 4: External interrupt
bit 3: HSI data ready
bit 2: A-D complete
bit 1: I/O timer ovflw
bit 0: HSO int 2
INTERRUPT STATUS
(same mask as above)
000A: IO STATUS IO STATUS
bit 5: interrupt priority 1/0 hi/low
bit 4: interrupt status 1/0 int serv/prog exe
bit 3: A-D complete
bit 2: HSI data ready
bit 1: HSI input ovflw
bit 0: HSO output ovflw
000B: HSI sample R/O
000C: HSI input mask HSI input mask
000D: HSI data hold HSO command hold
(write byte after HSO time)
bits 0-3: select HSO channel
bit 4: output level
bit 5: interrupt enable
0FH = software interrupt
000E:000F HSI time hold HSO time hold
(write word before HSO command)
0010:0011 STACK POINTER STACK POINTER
0012:00FF general register file general register file
Table 14: Register Map
Eectch98-Part1.fm
EEC-IV Technical Notes: Hardware 18 last edited: 9/29/98