DF2505FC26V Renesas Electronics America, DF2505FC26V Datasheet - Page 220

• Manufacturer Part Number: DF2505FC26V
• Description: IC H8S/2505 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2505FC26V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 8 Data Transfer Controller (DTC)
8.2.3
SAR is a 24-bit register that designates the source address of data to be transferred by the DTC.
For word-size transfer, specify an even source address.
8.2.4
DAR is a 24-bit register that designates the destination address of data to be transferred by the
DTC. For word-size transfer, specify an even destination address.
8.2.5
CRA is a 16-bit register that designates the number of times that data is transferred by the DTC.
In normal mode, the entire CRA functions as a 16-bit transfer counter (1 to 65536). It is
decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000.
In repeat mode or block transfer mode, the CRA is divided into two parts; the upper 8 bits
(CRAH) and the lower 8 bits (CRAL). In repeat mode, CRAH holds the number of transfers while
CRAL functions as an 8-bit transfer counter (1 to 256). In block transfer mode, CRAH holds the
block size while CRAL functions as an 8-bit block size counter (1 to 256). CRAL is decremented
by 1 every time data is transferred, and the contents of CRAH are sent when the count reaches
H'00. These operations are repeated.
8.2.6
CRB is a 16-bit register that designates the number of times that data is transferred by the DTC in
block transfer mode. It functions as a 16-bit transfer counter (1 to 65536) that is decremented by 1
every time data is transferred, and transfer ends when the count reaches H'0000.
8.2.7
DTCER is a set of registers to specify the DTC activation interrupt source, and comprised of eight
registers; DTCERA to DTCERG, and DTCERI. The correspondence between interrupt sources
and DTCE bits, and vector numbers generated by the interrupt controller are shown in table 8.2.
For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR for reading and
writing. When multiple activation sources are to be set at one time, only at the initial setting,
writing data is enabled after executing a dummy read on the relevant register with all the interrupts
being masked.
Rev. 6.00 Sep. 24, 2009 Page 172 of 928
REJ09B0099-0600
DTC Source Address Register (SAR)
DTC Destination Address Register (DAR)
DTC Transfer Count Register A (CRA)
DTC Transfer Count Register B (CRB)
DTC Enable Registers A to G, and I (DTCERA to DTCERG, and DTCERI)