D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 303
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
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6.11.1
In externally expanded mode, the bus can be released to an external device by setting the BRLE
bit to 1 in BCR. Driving the BREQ pin low issues an external bus request to this LSI. When the
BREQ pin is sampled, at the prescribed timing the BACK pin is driven low, and the address bus,
data bus, and bus control signals are placed in the high-impedance state, establishing the external
bus released state.
In the external bus released state, internal bus masters except the EXDMAC can perform accesses
using the internal bus. When an internal bus master wants to make an external access, it
temporarily defers initiation of the bus cycle, and waits for the bus request from the external bus
master to be canceled. If a refresh request is generated in the external bus released state, or if a
SLEEP instruction is executed to place the chip in software standby mode or all-module-clocks-
stopped mode, refresh control and software standby or all-module-clocks-stopped control is
deferred until the bus request from the external bus master is canceled.
If the BREQOE bit is set to 1 in BCR, the BREQO pin can be driven low when any of the
following requests are issued, to request cancellation of the bus request externally.
When the BREQ pin is driven high, the BACK pin is driven high at the prescribed timing and the
external bus released state is terminated.
If an external bus release request and external access occur simultaneously, the order of priority is
as follows:
If a refresh request and external bus release request occur simultaneously, the order of priority is
as follows:
When an internal bus master wants to perform an external access
When a refresh request is generated
When a SLEEP instruction is executed to place the chip in software standby mode or all-
module-clocks-stopped mode
(High) External bus release > External access by internal bus master (Low)
(High) Refresh > External bus release (Low)
Operation
Rev. 3.00 Mar 17, 2006 page 251 of 926
Section 6 Bus Controller (BSC)
REJ09B0283-0300
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