326
µ
PD78214 Sub-Series
(2) Macro service channel configuration
A channel pointer and a macro service counter (MSC) specify the addresses of transfer source and destination
buffers in the internal RAM (at FE00H through FEFFH). (See
Fig. 12-19
.)
The SFR to be accessed is predetermined for each interrupt request. (See
Table 12-8
.)
Fig. 12-19 Type A Macro Service Channel
Macro service buffer n
MSC = n
Macro service buffer 2
MSC = 2
Macro service buffer 1
MSC = 1
Macro service counter
(MSC)
Mode register
Channel pointer
↓
Higher address
↑
Lower address
Macro service channel
Macro service control word
(Macro service buffer address) = (Channel pointer) – (Macro service counter)
Содержание PD78212
Страница 11: ......
Страница 53: ...24 ...
Страница 61: ...32 µPD78214 Sub Series 9 VSS Ground 10 NC non connection Not connected inside the chip ...
Страница 65: ...36 ...
Страница 83: ...54 ...
Страница 135: ...106 ...
Страница 271: ...242 ...
Страница 405: ...376 ...
Страница 417: ...388 ...
Страница 423: ...394 ...
Страница 449: ...420 ...
Страница 457: ...428 ...
Страница 471: ...442 ...
Страница 487: ...458 ...