E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 268

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 7 DMA Controller
7.3.2
IOAR is not used in full address transfer.
7.3.3
ETCR is a 16-bit readable/writable register that specifies the number of transfers. The function of
this register is different in normal mode and in block transfer mode.
ETCR is not initialized by a reset or in standby mode.
(1) Normal Mode
ETCRA:
In normal mode, ETCRA functions as a 16-bit transfer counter. ETCRA is decremented by 1 each
time a transfer is performed, and transfer ends when the count reaches H'0000. ETCRB is not used
at this time.
ETCRB:
ETCRB is not used in normal mode.
Rev. 5.00 Sep 14, 2006 page 238 of 1060
REJ09B0331-0500
Transfer Counter
Bit
ETCR
Initial value
R/W
Legend: *: Undefined
I/O Address Register (IOAR)
Execute Transfer Count Register (ETCR)
:
:
:
:
R/W
15
*
R/W
14
*
R/W
13
*
R/W
12
*
R/W
11
*
R/W
10
*
R/W
9
*
R/W
8
*
R/W
7
*
R/W
6
*
R/W
5
*
R/W
4
*
R/W
3
*
R/W
2
*
R/W
1
*
R/W
0
*