PSB2115FV1.2D Lantiq, PSB2115FV1.2D Datasheet - Page 244

• Manufacturer Part Number: PSB2115FV1.2D
• Manufacturer: Lantiq

Specifications of PSB2115FV1.2D

• Lead Free Status / Rohs Status: Supplier Unconfirmed

4.3.8
Value after reset: (not defined, previous value)
TIMR1
CNT ... The meaning depends on the selected timer mode (MODED:TMD):
CNT indicates the maximum number of S commands “N1” which are transmitted
autonomously by the IPAC after expiration of time period T1 (retry, according to HDLC).
The internal procedure will be started in automode:
• after start of an I-frame transmission or
• after an ’RNR’ S-frame has been received
After the last retry a timer interrupt (TIN-bit in ISTAD) is generated.
The timer procedure will be stopped when
• a TIN interrupt is generated. The time between the start of an I-frame transmission or
• or the TIMR1 is written
• or a positive or negative acknowledgment has been received.
Note: The maximum value of CNT can be 6. If CNT is set to 7, the number of retries is
CNT together with VALUE determine the time period T2 after which a TIN interrupt will
be generated in the normal case:
When TLP=1 (test loop activated, SPCR register):
DCL denotes the period of the DCL clock.
The timer can be started by setting the STI-bit in CMDRD and will be stopped when a
TIN interrupt is generated or the TIMR1 register is written.
Note: If CNT is set to 7, a TIN interrupt is indefinitely generated after every expiration of
VALUE ... Determines the time period T1
T1 = ( VALUE + 1 ) x 0.064 sec (SPCR:TLP = 0, normal mode)
T1 = 512 x ( VALUE + 1 ) x DCL (SPCR:TLP = 1, test mode)
Semiconductor Group
Internal Timer Mode (TMD=1)
External Timer Mode (TMD=0)
reception of an ’RNR’ S-frame and the generation of a TIN interrupt is equal to:
unlimited.
T1.
TIMR1 - Timer 1 Register (Read/Write)
7
T2 = CNT x 2.048 sec + T1 with T1 = ( VALUE+1 ) x 0.064 sec
T2 = 16348 x CNT x DCL + T1 with T1 = 512 x ( VALUE+1 ) x DCL
CNT
5
( CNT + 1 ) x T1
4
244
VALUE
Detailed Register Description
0
PSB 2115
PSF 2115
11.97
(A3)