PEB 20542 F V1.3 Infineon Technologies, PEB 20542 F V1.3 Datasheet - Page 128

• Manufacturer Part Number: PEB 20542 F V1.3
• Description: IC CTRLR DMA SERIAL 2-CH TQFP144
• Manufacturer: Infineon Technologies
• Series: SEROCCO™r

Specifications of PEB 20542 F V1.3

• Function: Serial Optimized Communications Controller
• Interface: HDLC, PPP
• Number Of Circuits: 2
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 50mA
• Power (watts): 150mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 144-LFQFP
• Includes: Bit Processor Functions, Serial Communication Controllers (SCCs)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PEB20542FV1.3X; SP000007633

Data Sheet
OSCPD
BRC
DSHP
Oscillator Power Down
Setting this bit to ’0’ enables the internal oscillator. For power saving
purposes (escpecially if clock modes are used which do not need the
internal oscillator) this bit may remain set to ’1’.
OSCPD=’0’
OSCPD=’1’
Note: After reset this bit is set to ’1’, i.e. the oscillator is in power down
Bus Request Pin Characteristic
This bit controls the characteristic of output pin BREQ:
BRC=’0’
BRC=’1’
Note: If bus preemption as shown in
Disable Shaper
This bit has to be set to ’0’ if the shaping function in the oscillator unit is
desired. The shaper amplifies the oscillator signal and improves the
slope of the clock edges.
DSHP=’0’
DSHP=’1’
Note: After reset this bit is set to ’1’, i.e. the shaper is disabled!
mode!
enabling the push/pull output characteristic makes a strong pull-up
resistor for pin BREQ obsolete.
The internal oscillator is active.
The internal oscillator is in power down mode.
Open Drain active low (reset value)
Push/Pull active low
Shaper is enabled. Recommended setting if a crystal is
connected to pins XTAL1/XTAL2.
Shaper is disabled (bypassed). Recommended setting if
- a TTL level clock signal is supplied to pin XTAL1
- the oscillator unit is unused
5-128
Register Description (GMODE)
Chapter 3.4.3
is not needed,
PEB 20542
PEF 20542
2000-09-14