Mitsubishi 32172 User Manual page 262

9
DMA4 Request Extended Cause Register (DM4REQ)
D0
D Bit Name
0-3 No functions assigned
4-7 REQESEL4
(Selects DMA4 request
extended cause)
All DMA1 transfers
completed
TID0_udf,ovf
TID1_udf,ovf
TIN16
TIN23
TOM04_udf
SIO3-TXD
One DMA9 transfer
completed
PD_CMP0
PD_CMP1
Figure 9.2.7 Block Diagram of the DMA4 Request Extended Cause
1 2 3
Function
0000: All DMA1 transfers completed
0001: TID0_udf,ovf
0010: TID1_udf,ovf
0011: TIN16 input signal
0100: TIN23 input signal
0101: TOM04_udf
0110: Serial I/O-3 (transmit buffer empty)
0111: One DMA9 transfer completed
1000: PD_CMP0
1001: PD_CMP
101x: No selection
11xx: No selection
DM4REQ <H'0080 0456>
REQESEL4
Software start
One DMA3 transfer
completed
SIO0-RXD
S
9-22
9.2 DMAC Related Registers
<Address: H'0080 0456>
4 5 6
REQESEL4
<H'0080 0450>
DM4CNT
REQSL4
S
DMAC
D7
<When reset: H'00>
R W
0 –
DMA4
Rev.1.0