M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 115

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R
R
M
11.2. DMA Transfer Cycles
e
E
1
NOTES:
. v
J
k
6
j
Table 11.2 DMA Transfer Cycles
Table 11.3 Coefficient j, k
0
C
8-bit transfers
(DMBIT= “1”)
16-bit transfers
(DMBIT= “0”)
1. Depends on the set value of PM20 bit in PM2 register
2
9
Internal ROM, RAM
No wait With wait
Any combination of even or odd transfer read and write adresses is possible. Table 11.2 shows the
number of DMA transfer cycles. Table 11.3 shows the Coefficient j, k.
The number of DMAC transfer cycles can be calculated as follows:
0 .
2 /
Transfer unit
B
0
0
8
1
1
0
4
G
J
7
a
o r
0 -
. n
No. of transfer cycles per transfer unit = No. of read cycles x j + No. of write cycles x k
u
2
3
p
0
Internal area
, 1
0
(
2
2
M
2
0
1
0
6
7
C
Access address
2 /
1 wait
, 8
page 95
(1)
2
2
M
Even
Even
SFR
Odd
Odd
1
6
C
2 wait
f o
2 /
(1)
3
3
8
3
) B
8
5
No. of read cycles
1
1
1
2
No. of write cycles
1
1
1
2
11. DMAC