HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 577

• 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: -

14.3.18 IEBus Transmit/Runaway Status Register (IETSR)
IETSR detects transmit data ready, transmit start, transmit normal completion, transmit
completion with an error, or runaway states. Each status flags in IETSR corresponds to a bit in the
IEBus transmit/runaway interrupt enable register (IEIET) that enables or disables each interrupt.
Bit
7
6 to 4 ⎯
3
Bit Name
TxRDY
IRA
Initial
Value
1
All 0
0
R/W
R/W
⎯
R/W
Description
Transmit Data Ready
Indicates that the next data can be written to IETBR since
IETBR is empty. This flag is automatically cleared by DTC *
data transfer. When data is transmitted by the CPU, this
flag must be cleared by software. This flag is cleared by
writing 0 after reading a 1 from this flag.
[Setting conditions]
•
•
[Clearing conditions]
•
•
Reserved
These bits are always read as 0 and cannot be modified.
IEBus Runaway State
Indicates that the on-chip microprogram for IEBus control is
in the runaway states. This flag is set to 1 when a runaway
occurs during either IEBus transmission or reception. (This
flag is not a transfer specific flag and is also set for a
reception runaway.)
[Setting condition]
When the on-chip microprogram is in the runaway states
[Clearing condition]
When writing 0 after reading IRA = 1
Note: This flag is not cleared on the end byte of DTC
Immediately after reset
When data can be written to IETBR (: When IEB has
loaded data from IETBR to the transmit shift register)
When writing 0 after reading TxRDY = 1
When data is written to TBR by the DTC by a TxRDY
request.
Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
transfer.
Rev. 6.00 Mar. 18, 2010 Page 515 of 982
REJ09B0054-0600