Z89135 Datasheet, PDF (33/66 Pages) Zilog, Inc. – Low-Cost DTAD Controller

Zilog
Z89135/136 (ROMless)
Low-Cost DTAD Controller
IRQ0 IRQ2
1
IRQ1, 3, 4, 5
Interrupt
Edge
Select
IRQ Register
(D6, D7)
IRQ
Interrupt
Request
Global
Interrupt
Enable
IMR
6
IPR
Priority
Logic
Vector Select
Figure 21. Interrupt Block Diagram
Name
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
Table 4. Interrupt Types, Sources, and Vectors
Source
/DAV0, P32, AN2
/DAV1, P33
/DAV2, P31,T_IN, AN2
IRQ3
T0
TI
Vector Location Comments
0, 1
External (P32), Programmable Rise or Fall Edge Triggered
2, 3
External (P33), Fall Edge Triggered
4, 5
External (P31), Programmable Rise or Fall Edge Triggered
6, 7
8, 9
10, 11
Internal (DSP activated), Fall Edge Triggered
Internal
Internal
DS97TAD0300
PRELIMINARY
1-33