HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 266
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 6 Bus Controller (BSC)
6.7.12
Burst Operation
With synchronous DRAM, in addition to full access (normal access) in which data is accessed by
outputting a row address for each access, burst access is also provided which can be used when
making consecutive accesses to the same row address. This access enables fast access of data by
simply changing the column address after the row address has been output. Burst access can be
selected by setting the BE bit to 1 in DRAMCR.
DQM has the 2-cycle latency when synchronous DRAM is read. Therefore, the DQM signal
cannot be specified to the T
cycle data output if T
cycle is performed for second or following
c2
c1
column address when the CAS latency is set to 1 to issue the READ command. Do not set the BE
bit to 1 when synchronous DRAM of CAS latency 1 is connected.
Burst Access Operation Timing: Figure 6.52 shows the operation timing for burst access. When
there are consecutive access cycles for continuous synchronous DRAM space, the column address
output cycles continue as long as the row address is the same for consecutive access cycles. The
row address used for the comparison is set with bits MXC2 to MXC0 in DRAMCR.
Rev. 3.00 Mar 17, 2006 page 214 of 926
REJ09B0283-0300
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