HD64F2239FA16 Renesas Electronics America, HD64F2239FA16 Datasheet - Page 262
HD64F2239FA16
Manufacturer Part Number
HD64F2239FA16
Description
IC H8S MCU FLASH 384K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of HD64F2239FA16
Core Processor
H8S/2000
Core Size
16-Bit
Speed
16MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239FA16V
Manufacturer:
RENESAS
Quantity:
1 000
Part Number:
HD64F2239FA16V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 7 Bus Controller
7.10.2
Even if a bus request is received from a bus master with a higher priority than that of the bus
master that has acquired the bus and is currently operating, the bus is not necessarily transferred
immediately. There are specific times at which each bus master can relinquish the bus.
CPU: The CPU is the lowest-priority bus master, and if a bus request is received from the
DMAC* and DTC, the bus arbiter transfers the bus to the bus master that issued the request. The
timing for transfer of the bus is as follows:
• The bus is transferred at a break between bus cycles. However, if a bus cycle is executed in
• If the CPU is in sleep mode, it transfers the bus immediately.
Note: * Supported only by the H8S/2239 Group.
DTC: The DTC sends the bus arbiter a request for the bus when an activation request is generated.
The DTC can release the bus after a vector read, a register information read (3 states), a single data
transfer, or a register information write (3 states). It does not release the bus during a register
information read (3 states), a single data transfer, or a register information write (3 states).
DMAC (Only by the H8S/2239 Group): The DMAC sends the bus arbiter a request for the bus
when an activation request is generated.
In the case of an external request in short address mode or normal mode, and in cycle steal mode,
the DMAC releases the bus after a single transfer.
In block transfer mode, it releases the bus after transfer of one block, and in burst mode, after
completion of the transfer.
7.10.3
External bus release can be performed on completion of an external bus cycle. The CS signal
remains low until the end of the external bus cycle. Therefore, when external bus release is
performed, the CS signal may change from the low level to the high-impedance state.
Rev. 6.00 Mar. 18, 2010 Page 200 of 982
REJ09B0054-0600
discrete operations, as in the case of a longword-size access, the bus is not transferred between
the operations.
External Bus Release Usage Note
Bus Transfer Timing
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