DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 307

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Single address mode can only be specified for channel B. This mode can be specified by setting
the SAE bit in DMABCRH to 1 in short address mode.
One address is specified by MAR, and the other is set automatically to the data transfer
acknowledge pin (DACK). The transfer direction can be specified by the DTDIR bit in DMACR.
Table 8.8 summarizes register functions in single address mode.
Table 8.8
Register
MAR specifies the start address of the transfer source or transfer destination as 24 bits. IOAR is
invalid; in its place the strobe for external devices (DACK) is output.
23
15
DACK pin
Register Functions in Single Address Mode
MAR
ETCR
0
0
DTDIR = 0 DTDIR = 1 Initial Setting
Source
address
register
Write
strobe
Transfer counter
Function
Destination
address
register
Read
strobe
Start address of
transfer destination
or transfer source
(Set automatically
by SAE bit; IOAR is
invalid)
Number of transfers See sections 8.5.2,
Rev. 6.00 Mar. 18, 2010 Page 245 of 982
Section 8 DMA Controller (DMAC)
Operation
See sections 8.5.2,
Sequential Mode,
8.5.3, Idle Mode, and
8.5.4, Repeat Mode.
Strobe for external
device
Sequential Mode,
8.5.3, Idle Mode, and
8.5.4, Repeat Mode.
REJ09B0054-0600