D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 374
![IC H8S/2300 MCU ROMLESS 128QFP](/photos/12/19/121977/d12321vf25v_sml.jpg)
D12321VF25V
Manufacturer Part Number
D12321VF25V
Description
IC H8S/2300 MCU ROMLESS 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.D12322RVF25V.pdf
(1304 pages)
Specifications of D12321VF25V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
86
Program Memory Type
ROMless
Ram Size
4K 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
128-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
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Section 8 Data Transfer Controller
Chain Transfer when Counter = 0: By executing a second data transfer, and performing re-
setting of the first data transfer, only when the counter value is 0, it is possible to perform 256 or
more repeat transfers.
An example is shown in which a 128-kbyte input buffer is configured. The input buffer is assumed
to have been set to start at lower address H'0000. Figure 8.13 shows the memory map.
[1] For the first transfer, set the normal mode for input data. Set fixed transfer source address
[2] Prepare the upper 8-bit addresses of the start addresses for each of the 64k transfer start
[3] For the second transfer, set repeat mode (with the source side as the repeat area) for re-setting
[4] Execute the first data transfer 64k times by means of interrupts. When the transfer counter for
[5] Next, execute the first data transfer the 64k times specified for the first data transfer by means
[6] Steps [4] and [5] are repeated endlessly. As repeat mode is specified for the second data
Rev.6.00 Sep. 27, 2007 Page 342 of 1268
REJ09B0220-0600
(G/A, etc.), CRA = H'0000 (64k times), and CHNE = 1, CHNS = 1, and DISEL = 0.
addresses for the first data transfer in a separate area (in ROM, etc.). For example, if the input
buffer comprises H'200000 to H'21FFFF, prepare H'21 and H'20.
the transfer destination address for the first data transfer. Use the upper 8 bits of DAR in the
first register information area as the transfer destination. Set CHNE = DISEL = 0. If the above
input buffer is specified as H'200000 to H'21FFFF, set the transfer counter to 2.
the first data transfer reaches 0, the second data transfer is started. Set the upper 8 bits of the
transfer source address for the first data transfer to H'21. The lower 16 bits of the transfer
destination address of the first data transfer and the transfer counter are H'0000.
of interrupts. When the transfer counter for the first data transfer reaches 0, the second data
transfer is started. Set the upper 8 bits of the transfer source address for the first data transfer to
H'20. The lower 16 bits of the transfer destination address of the first data transfer and the
transfer counter are H'0000.
transfer, an interrupt request is not sent to the CPU.
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