DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 241
DF2211NP24V
Manufacturer Part Number
DF2211NP24V
Description
H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
Manufacturer
Renesas Technology / Hitachi Semiconductor
Datasheet
1.DF2211NP24V.pdf
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Figure 7.8 illustrates operation in normal mode.
Transfer requests (activation sources) are external requests and auto-requests. With auto-request,
the DMAC is only activated by register setting, and the specified number of transfers are
performed automatically. With auto-request, cycle steal mode or burst mode can be selected. In
cycle steal mode, the bus is released to another bus master each time a transfer is performed. In
burst mode, the bus is held continuously until transfer ends. For setting details, see section 7.3.4,
DMA Controller Register (DMACR).
Address T
Address B
Notes:
Address T
Address T
Address B
Address B
L
L
N = Value set in ETCRA
A
A
B
A
A
B
A
B
= Value set in MARA
= Value set in MARB
= L
= L
= L
= L
A
B
A
B
+ SAIDE · (–1)
+ DAIDE · (–1)
Figure 7.8 Operation in Normal Mode
SAID
DAID
· (2
· (2
DTSZ
DTSZ
· (N–1))
· (N–1))
Transfer
Rev.7.00 Dec. 24, 2008 Page 187 of 698
REJ09B0074-0700
Address T
Address B
B
B
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