PEF 20525 F V1.3 Infineon Technologies, PEF 20525 F V1.3 Datasheet - Page 61

• Manufacturer Part Number: PEF 20525 F V1.3
• Description: IC CTRL PPP/HDLC SERIAL TQFP-100
• Manufacturer: Infineon Technologies

Specifications of PEF 20525 F V1.3

• Function: Serial Optimized Communications Controller
• Interface: ASYNC, BISYNC, HDLC, PPP
• Number Of Circuits: 2
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 50mA
• Power (watts): 150mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LFQFP
• Includes: Bit Processor Functions, Serial Communication Controllers (SCCs)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PEF20525FV1.3X; PEF20525FV13XP; SP000007592

The following figures provide a more detailed description of the TSA internal counter
operation and exceptional cases:
Figure 23
Data Sheet
clock mode 5a
bit TSCM='0' (continuous mode)
E x c ep tio ns :
a ) F S C p u ls e p erio d > 1 02 4 :
b ) F S C p u ls e p erio d < (T S de la y + T S w id th ), i.e. F S C p u ls e de te cte d w hile du ratio n c o un te r s till a c tiv e :
RxCLK,
lo ad o ffs e t
TxCLK
F S C
F S C
T h e o ffse t c ou n te r oc n t w ill a uto m a ic ally re s tart afte r 1 02 4 clo c k c y c les
T h e o ffse t c ou n te r oc n t w ill a uto m a ic ally re s tart,
a n d w ill b e res ta rte d a g ain b y th e la te F S C p u ls e!
b u t du ra tio n c o un te r d cn t c on tinu e s o p e ra tio n (tran s m it/re c e ive in a c tive tim e slo ts )
T S d ela y = 1 + xT S N *8 + x C S
(1 ...1 0 2 4)
o c n t := 1 02 4 - T S d e lay
FSC
oc n t:
M od e T E P C M /R E P C M = '0 '
M od e T E P C M /R E P C M = '1 '
s ta rt
o cn t
s ta rt
o cn t
Clock Mode 5a "Continuous Mode"
...
lo a d d u ra tion
T S d e la y + 10 2 4 c lo ck c yc le s
o cn t := 1 0 24
< 10 2 4 c lo ck c yc le s
d cn t := 0
d cn t := 0
d c n t:
o c nt := 0
dc n t
s ta rt
61
d c n t := T S w id th - 1
re s tart
o c nt
tim e s lot
ac tiv e
dc n t := 2 5 5
re sta rt
oc n t
ac tiv e
tim e slo ts a c c ordin g
P C M T X /P C M R X
N < T S de la y
lo ad o ffs e t
o c nt := N ,
re s tart
o cn t:
oc n t
Functional Overview
oc n t := 1 02 4 - T S d e lay
PEB 20525
PEF 20525
2000-09-14