HD6417032F20V Renesas Electronics America, HD6417032F20V Datasheet - Page 182
HD6417032F20V
Manufacturer Part Number
HD6417032F20V
Description
SH1 ROMLESS LEAD FREE
Manufacturer
Renesas Electronics America
Series
SuperH® SH7030r
Datasheet
1.HD6417034AFI20.pdf
(689 pages)
Specifications of HD6417032F20V
Core Processor
SH-1
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417032F20V
Manufacturer:
TI
Quantity:
201
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Section 8 Bus State Controller (BSC)
Short-Pitch, High-Speed Page Mode and Long-Pitch High-Speed Page Mode: When burst
operation is selected by setting the BE bit to 1 in DCR, short pitch high-speed page mode or long
pitch high-speed page mode can be selected by setting the RW1, WW1, DRW1, and DWW1 bits
in WCR1 and WCR2.
Rev. 7.00 Jan 31, 2006 page 154 of 658
REJ09B0272-0700
AD15–
Short-pitch, high-speed page mode: When the RW1, WW1, DRW1, and DWW1 bits in WCR1
and WCR2 are cleared to 0, and the corresponding DRAM access cycle is continuing, the CAS
signal and column address output cycles continue as long as the row addresses continue to
match. The column address output cycle is performed in 1 state and the WAIT signal is not
sampled. Figure 8.23 shows the read cycle timing for short-pitch, high-speed page mode.
When the write cycle continues for the same row address in short-pitch, high-speed page
mode, an open cycle (silent cycle) is produced for 1 cycle only. This timing is shown in figure
8.24. Likewise, when a write cycle continues after the read cycle for the same row address, a
silent cycle is produced for 1 cycle. This timing is shown in figure 8.25. Note also that when
DRAM is written to in short-pitch, high-speed page mode when using DMAC single address
mode, a silent cycle is inserted in each transfer. The details of timing are discussed in sections
20.1.3 (3) and 20.2.3 (3), Bus Timing.
A21–
RAS
CAS
WR
CK
A0
A0
Figure 8.23 Short-Pitch, High-Speed Page Mode (Read Cycle)
T p
Row address 1
T r
address 1
Column
T c
Data 1
address 2
Column
T c
Data 2
address 3
Column
T c
Data 3
address 4
Column
T c
Data 4
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