D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 281
D12674RVFQ33D
Manufacturer Part Number
D12674RVFQ33D
Description
MCU 3V 0K I-TEMP 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Datasheet
1.D12674RVFQ33V.pdf
(981 pages)
Specifications of D12674RVFQ33D
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 Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Other names
HD6412674RVFQ33D
HD6412674RVFQ33D
HD6412674RVFQ33D
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12674RVFQ33DV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 281 of 981
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Section 6 Bus Controller (BSC)
6.8
Burst ROM Interface
In this LSI, external space areas 0 and 1 can be designated as burst ROM space, and burst ROM
interfacing performed. The burst ROM space interface enables ROM with burst access capability
to be accessed at high speed.
Areas 1 and 0 can be designated as burst ROM space by means of bits BSRM1 and BSRM0 in
BROMCR. Continuous burst accesses of 4, 8, 16, or 32 words can be performed, according to the
setting of the BSWD11 and BSWD10 bits in BROMCR. From 1 to 8 states can be selected for
burst access.
Settings can be made independently for area 0 and area 1.
In burst ROM interface space, burst access covers only CPU read accesses.
6.8.1
Basic Timing
The number of access states in the initial cycle (full access) on the burst ROM interface is
determined by the basic bus interface settings in ASTCR, ABWCR, WTCRA, WTCRB, and
CSACRH. When area 0 or area 1 is designated as burst ROM interface space, the settings in
RDNCR and CSACRL are ignored.
From 1 to 8 states can be selected for the burst cycle, according to the settings of bits BSTS02 to
BSTS00 and BSTS12 to BSTS10 in BROMCR. Wait states cannot be inserted. Burst access of up
to 32 words is performed, according to the settings of bits BSTS01, BSTS00, BSTS11, and
BSTS10 in BROMCR.
The basic access timing for burst ROM space is shown in figures 6.63 and 6.64.
Rev. 3.00 Mar 17, 2006 page 229 of 926
REJ09B0283-0300
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