HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 562

• Manufacturer Part Number: HD64F2239TF20I
• Description: MCU 3V 384K I-TEMP 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of HD64F2239TF20I

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• 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: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
14.3.2
IECMR issues commands to control IEB communications. Since this register is a write-only
register, bit-manipulation instructions should not be used when writing. See section 2.9.4, Access
Methods for Registers with Write-Only Bits.
Rev. 6.00 Mar. 18, 2010 Page 500 of 982
REJ09B0054-0600
Bit
2
1, 0
Bit Name
LUEE
⎯
IEBus Command Register (IECMR)
Initial
Value
All 0
0
R/W
⎯
R/W
Description
Last Byte Underrun Enable
Sets whether to generate an underrun error when the last
data field byte is transferred in data transmission.
If the IEB reads from IETBR when the TxRDY flag is set
(the transmit buffer register (IETBR) is empty), an underrun
error occurs. In transmission using the DTC, an underrun
error occurs at the last byte transmission if the CPU did not
clear the TxRDY flag, because the DTC does not clear the
TxRDY flag. When the DTC is used, set this bit to 0 to
mask an underrun error generated at the last byte
transmission. When the DTC is not used, set this bit to 1 to
generate an underrun error at the last byte transmission.
0: An underrun error does not occur at the last byte
1: An underrun error does not occur at the last byte
Reserved
This bit is always read as 0 and cannot be modified.
transmission (when using the DTC)
transmission (when not using the DTC)