DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 307
DF61657CN35FTV
Manufacturer Part Number
DF61657CN35FTV
Description
IC H8SX/1657 MCU FLASH 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.DF61656N35FTV.pdf
(894 pages)
Specifications of DF61657CN35FTV
Core Processor
H8SX
Core Size
32-Bit
Speed
35MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
82
Program Memory Size
768KB (768K x 8)
Program Memory Type
FLASH
Ram Size
24K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
120-TQFP, 120-VQFP
For Use With
3DK1657 - DEV EVAL KIT FOR H8SX/1657
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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(6)
The ACT bit in DMDR indicates whether the DMAC is in the idle or active state. When DTE = 0
or DTE = 1 and the DMAC is waiting for a transfer request, the ACT bit is 0. Otherwise (the
DMAC is in the active state), the ACT bit is 1. When individual transfers are stopped by writing 0
and the transfer is not completed, the ACT bit retains 1.
In block transfer mode, even if individual transfers are stopped by writing 0 to the DTE bit, the 1-
block size of transfers is not stopped. The ACT bit retains 1 from writing 0 to the DTE bit to
completion of a 1-block size transfer.
In burst mode, up to three times of DMA transfer are performed from the cycle in which the DTE
bit is written to 0. The ACT bit retains 1 from writing 0 to the DTE bit to completion of DMA
transfer.
(7)
When an address error or an NMI interrupt occur, the DMAC clears the DTE bits for all the
channels to stop a transfer. In addition, it sets the ERRF bit in DMDR_0 to 1 to indicate that an
address error or an NMI interrupt has occurred regardless of whether or not the DMAC is in
operation.
(8)
When an interrupt by an transfer size error, a repeat size end, or an extended repeat area overflow
is requested, the ESIF bit in DMDR is set to 1. When both the ESIF and ESIE bits are set to 1, a
transfer escape interrupt is requested to the CPU or DTC.
The ESIF bit is set to 1 when the ACT bit in DMDR is cleared to 0 to stop a transfer after the bus
cycle of the interrupt source is completed.
The ESIF bit is automatically cleared to 0 and a transfer request is cleared if the transfer is
resumed by setting the DTE bit to 1 during interrupt handling.
For details on interrupts, see section 7.8, Interrupt Sources.
ACT Bit in DMDR
ERRF Bit in DMDR
ESIF Bit in DMDR
Rev. 2.00 Jun. 28, 2007 Page 281 of 864
Section 7 DMA Controller (DMAC)
REJ09B0341-0200
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