PSB2134(1998) View Datasheet(PDF) - Infineon Technologies

Part Name

Description

Manufacturer

PSB2134
(Rev.:1998)

Two/Four Channel Codec Filter for Terminal Applications SICOFI®-2/4-TE

Infineon Technologies 

PSB 2132

PSB 2134

Interrupt Handling

µC

Interface

Control-Unit

XR Input-Bits, Assigned to

Channel-Pair 1, 2

INT12-Unit

SBx_x, Programmed

as Inputs !

INT12

SI1_0

SI1_1

SB1_0

SB1_1

SB1_2

SI2_0

SI2_1

SB2_0

SB2_1

SB2_2

XR Input-Bits, Assigned to

Channel-Pair 3, 4

INT34-Unit

SBx_x, Programmed

as Inputs !

INT34

SI3_0

SI3_1

SB3_0

SB3_1

SB3_2

SI4_0

SI4_1

SB4_0

SB4_1

SB4_2

Inputs,

Channel 1

Inputs,

Channel 2

Inputs,

Channel 3

Inputs,

Channel 4

ITS10545

Figure 1

Example for Channel-pair-1,2

If one or more of the signaling input pins for channel-pair-1,2 (input pins and

bi-directional pins programmed as inputs) change, and all these signaling inputs for

channel-pair-1,2 are stable for at least the debounce time specified in Register XR4

INT12 will go from ‘0’ to ‘1’.

The assigned interrupt INT12 is cleared if the appropriate registers (XR0, XR1, XR2 and

XR3, read with command XOP := 3BH) are read via the serial µC-interface.

Note: Pin INT34 provides the same functionality for channel-pair-3,4. Changes at the

signaling inputs assigned to channel-pair-3,4 do not affect INT12 and vice versa!

Semiconductor Group

4

1998-04-01

Share Link: