HD6417750RF240DV Renesas Electronics America, HD6417750RF240DV Datasheet - Page 723
HD6417750RF240DV
Manufacturer Part Number
HD6417750RF240DV
Description
MPU 3V 16K I-TEMP,PB-FREE 208-QF
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750RF240DV
Core Processor
SH-4
Core Size
32-Bit
Speed
240MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
28
Program Memory Type
ROMless
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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Quantity
Price
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Part Number:
HD6417750RF240DV
Manufacturer:
HITACHI
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Table 14.12 DMAC Pins in DDT Mode
Pin Name
Data bus request
Data bus available
Transfer request signal
DMAC strobe
Channel number
notification
Requests for DMA transfer from external devices are normally accepted only on channel 0
(DREQ0) and channel 1 (DREQ1). In DDT mode, the BAVL pin functions as both the data-bus-
available pin and channel-number-notification (ID2) pin.
14.6.3
Table 14.13 shows the configuration of the DMAC's registers. The DMAC of the SH7750R has a
total of 33 registers: four registers are assigned to each channel, and there is a control register for
the overall control of the DMAC.
Register Configuration (SH7750R)
Abbreviation
DBREQ
(DREQ0)
BAVL/ID2
(DRAK0)
TR
(DREQ1)
TDACK
(DACK0)
ID[1:0]
(DRAK1, DACK1)
Section 14 Direct Memory Access Controller (DMAC)
I/O
Input
Output
Input
Output
Output
Rev.7.00 Oct. 10, 2008 Page 637 of 1074
Function
Data bus release request from external
device for DTR format input
Data bus release notification
Data bus can be used 2 cycles after
BAVL is asserted
Notification of channel number to
external device at same time as TDACK
output
If asserted 2 cycles after BAVL
assertion, DTR format is sent
Only TR asserted: DMA request
DBREQ and TR asserted
simultaneously: Direct request to
channel 2
Reply strobe signal for external device
from DMAC
Notification of channel number to
external device at same time as TDACK
output
(ID [1] = DRAK1, ID [0] = DACK1)
REJ09B0366-0700
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