em78f644nso28s ELAN Microelectronics Corp, em78f644nso28s Datasheet - Page 67

• Manufacturer Part Number: em78f644nso28s
• Description: Flash Series 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 05.05.2010
(This specification is subject to change without further notice)
Bit 0 (I2CTIF): I2C transmit interrupt flag. Set when I2C transmits 1 byte data and
Bit 1 (ICIF):
Bit 0 (TCIF):
6.3.10 Bank0 RD: ISR2 (Interrupt Status Register 2)
Bit 7 (CMP2IF): Comparator2 interrupt flag. Set when a change occurs in the output
Bit 6 (CMP1IF):Comparator1 interrupt flag. Set when a change occurs in the output
Bit 5(TC3IF): 8-bit timer/counter 3 interrupt flag. Flag cleared by software.
Bit 4 (TC2IF): 16-bit timer/counter 2 interrupt flag. Flag cleared by software.
Bit 3 (TC1IF): 8-bit timer/counter 1 interrupt flag. Flag cleared by software.
Bit 2 (UERRIF): UART receiving error interrupt. Flag cleared by software or UART
Bit 1 (RBFF): UART receive mode data buffer full interrupt flag.
Bit 0 (TBEF): UART transmit mode data buffer empty interrupt flag.
6.3.11 Bank0 RE: ISR3 (Interrupt Status Register 3)
Bits 7~4:
Bit 3 (I2CSTPIF): I2C slave receive data stop interrupt flag
Bit 2:
Bit 1 (I2CRIF): I2C receive interrupt flag. Set when I2C receives 1byte data and
CMP2IF
Bit 7
Bit 7
0
CMP1IF
Bit 6
Bit 6
receive handshake signal (ACK or NACK). Reset by firmware or I2C
disable.
Port 6 input status change interrupt flag.
Set when Port 6 input changes. Reset by software.
TCC overflow interrupt flag.
Set when TCC overflows. Reset by software.
of Comparator2. Reset by software.
of Comparator1. Reset by software.
disabled.
Flag cleared by software.
0
Not used, fixed to “0” all the time.
Not used, fixed to “0” all the time.
responds ACK signal. Reset by firmware or I2C disable.
Flag cleared by software.
TC3IF
Bit 5
Bit 5
0
EM78F648/644/642/641/548/544/542/541N
TC2IF
Bit 4
Bit 4
0
I2CSTPIF
TC1IF
Bit 3
Bit 3
UERRIF
Bit 2
Bit 2
0
8-Bit Microcontroller
I2CRIF
RBFF
Bit 1
Bit 1
I2CTIF
TBEF
Bit 0
Bit 0
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