HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 166

• Manufacturer Part Number: HD64F7144F50V
• Description: IC SUPERH MCU FLASH 256K 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7144r

Specifications of HD64F7144F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

8. Data Transfer Controller (DTC)
8.2.8
DTCSR is a 16-bit readable/writable register that is used to disable/enable DTC activation by
software and to set the DTC vector addresses for software activation. It also indicates the DTC
transfer status.
Rev.4.00 Mar. 27, 2008 Page 120 of 882
REJ09B0108-0400
Bit
15 to
11
10
9
8
Bit Name
—
NMIF
AE
SWDTE
DTC Control/Status Register (DTCSR)
All 0
0
0
Initial Value
0
R/W
R
R/(W)*
R/(W)*
R/W*
2
1
1
Description
Reserved
These bits have no effect on DTC operation. The
write value should always be 0.
NMI Flag Bit
This bit indicates that an NMI interrupt has occurred.
0: No NMI interrupts
[Clearing condition]
•
1: NMI interrupt has been generated
When the NMIF bit is set, DTC transfers are not
allowed even if the DTER bit is set to 1. If, however,
a transfer has already started with the NMIM bit of
the DTMR set to 1, execution will continue until that
transfer ends.
Address Error Flag
This bit indicates that an address error by the DTC
has occurred.
0: No address error by the DTC
[Clearing condition]
•
1: An address error by the DTC occurred
When the AE bit is set, DTC transfers are not
allowed even if the DTER bit is set to 1.
DTC Software Activation Enable
Setting this bit to 1 activates DTC.
0: DTC activation by software disabled
1: DTC activation by software enabled
Write 0 after reading the NMIF bit
Write 0 after reading the AE bit