UPD784938 Datasheet, PDF (584/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 23 INTERRUPT FUNCTIONS
Figure 23-31. Stepping Motor Open Loop Control by Real-Time Output Port
1 M memory space
Macro service control word,
macro service channel
(internal RAM)
123411H
T9
Output timing
data area
T2
123409H
T1
123408H
D9
Output data area
D2
123400H
D1
MSC
0FE5EH
TSFRP
MPT
DSFRP
MPD
00H
–1
04H
14H Low-order 8 bits
of CR10 address
12H
34H
+1
09H
0EH Low-order 8 bits
of P0L address
12H
34H
+1
00H
Channel
pointer
Mode
register
5EH
Type C, MPT/MPD
0FH ^{incremented, 1-byte}
timer data, no
automatic addition,
no ring control,
interrupt request
generation at
MSC = 0
Internal bus
Compare
register CR10
Buffer
P0
register P0L
P00
INTC10
Match Real-time
output trigger/
macro service start
Timer
counter 1
TM1
P01
Output
P02
latch P0
P03
Stepping motor
Remark Internal RAM addresses in the figure are the values when the LOCATION 0 instruction is executed.
When the LOCATION 0FH instruction is executed, 0F0000H should be added to the values in the figure.
584
Preliminary User’s Manual U13987EJ1V0UM00