CY8C22213 Datasheet, PDF (131/304 Pages) Cypress Semiconductor – PSoC Mixed Signal Array

CY8C22xxx Preliminary Data Sheet
13.1.45 INT_CLR1
Interrupt Clear Register 1
Individual Register Names and Addresses
INT_CLR1: 0,DBh
7
6
5
4
Access : POR
Bit Name
13. Register Details
3
RW : 0
DCB03
2
RW : 0
DCB02
1
RW : 00
DBB01
0
RW : 0
DBB00
When bits in this register are read, a ‘1’ will be returned for every bit position that has a corresponding posted interrupt. When
bits in this register are written with a zero (0) and ENSWINT is not set, posted interrupts will be cleared at the corresponding
bit positions. If there was not a posted interrupt, there is no effect. When bits in this register are written with a one (1) and
ENSWINT is set, an interrupt is posted in the interrupt controller. Note that the ENSWINT bit is in the INT_MSK3 register on
page 133. For additional information, reference the “Register Definitions” on page 53 in the Interrupt Controller chapter.
Bit
[7:4]
[3]
Name
Reserved
DCB03
[2]
DCB02
[1]
DBB01
[0]
DBB00
Description
Digital Communications Block type B, row 0, position 3.
Read 0 No posted interrupt.
Read 1 Posted interrupt present.
Write 0 AND ENSWINT = 0 Clear posted interrupt if it exists.
Write 1 AND ENSWINT = 0 No effect.
Write 0 AND ENSWINT = 1 No effect.
Write 1 AND ENSWINT = 1 Post an interrupt.
Digital Communications Block type B, row 0, position 2.
Read 0 No posted interrupt.
Read 1 Posted interrupt present.
Write 0 AND ENSWINT = 0 Clear posted interrupt if it exists.
Write 1 AND ENSWINT = 0 No effect.
Write 0 AND ENSWINT = 1 No effect.
Write 1 AND ENSWINT = 1 Post an interrupt.
Digital Basic Block type B, row 0, position 1.
Read 0 No posted interrupt.
Read 1 Posted interrupt present.
Write 0 AND ENSWINT = 0 Clear posted interrupt if it exists.
Write 1 AND ENSWINT = 0 No effect.
Write 0 AND ENSWINT = 1 No effect.
Write 1 AND ENSWINT = 1 Post an interrupt.
Digital Basic Block type B, row 0, position 0.
Read 0 No posted interrupt.
Read 1 Posted interrupt present.
Write 0 AND ENSWINT = 0 Clear posted interrupt if it exists.
Write 1 AND ENSWINT = 0 No effect.
Write 0 AND ENSWINT = 1 No effect.
Write 1 AND ENSWINT = 1 Post an interrupt.
December 22, 2003
Document No. 38-12009 Rev. *D
131