em78f644nso28s ELAN Microelectronics Corp, em78f644nso28s Datasheet - Page 42

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

EM78F648/644/642/641/548/544/542/541N
8-Bit Microcontroller
32 •
6.1.27 Bank 1 RE SPIWB (SPI Write Data Buffer)
Bit 7 ~ Bit 0 (SWB7 ~ SWB0): SPI Write data buffer
6.1.28 Bank 1 RF (Interrupt Status Register 2)
Bit 7 (CMP2IF): Comparator 2 Interrupt flag. Set when a change occurs in the
Bit 6:
Bit 5 (TC3IF):
Bit 4 (TC2IF):
Bit 3 (TC1IF):
Bit 2 (UERRIF): UART receiving error interrupt flag
Bit 1 (RBFF):
Bit 0 (TBEF):
6.1.29 Bank 2 RA URC1 (UART Control 1)
Bit 7 (URTD8): Transmission Data Bit 8
CMP2IF
URTD8
SWB7
Bit 7
Bit 7
Bit 7
The Interrupt flag is automatically set by hardware. It must be cleared by software.
For F642/542N, Bit 2 ~ Bit 0 are unused. Set to “0” all the time.
For F641/541N, Bit 4 ~ Bit 0 are unused. Set to “0” all the time
UMODE1 UMODE0
SWB6
Bit 6
Bit 6
Bit 6
-
Comparator 2 output. Reset by software.
Not used, set to ”0” all the time.
8-bit Timer/Counter 3 Interrupt flag
16-bit Timer/Counter 2 Interrupt flag
8-bit Timer/Counter 1 Interrupt flag
UART receive mode data buffer full interrupt flag
UART transmit mode data buffer empty interrupt flag
For F642/542N, F641/541N, this register is reserved.
For F642/542N, F641/541N, this register is reserved.
SWB5
TC3IF
Bit 5
Bit 5
Bit 5
BRATE2
SWB4
TC2IF
Bit 4
Bit 4
Bit 4
(This specification is subject to change without further notice)
NOTE
NOTE
NOTE
BRATE1
SWB3
TC1IF
Bit 3
Bit 3
Bit 3
Product Specification (V1.0) 05.05.2010
UERRIF
BRATE0
SWB2
Bit 2
Bit 2
Bit 2
SWB1
RBFF
UTBE
Bit 1
Bit 1
Bit 1
SWB0
TBEF
Bit 0
Bit 0
Bit 0
TXE