PSB 21150 H V1.4 Infineon Technologies, PSB 21150 H V1.4 Datasheet - Page 35

• Manufacturer Part Number: PSB 21150 H V1.4
• Description: IC MODULAR ISDN NT INTELL MQFP64
• Manufacturer: Infineon Technologies

Specifications of PSB 21150 H V1.4

• Function: PC Adapter Circuit
• Interface: HDLC, ISDN, SCI
• Number Of Circuits: 1
• Voltage - Supply: 3.3V
• Current - Supply: 30mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-QFP
• Includes: Activation and Deactivation, D-Channel Access Control, Monitor Channel Handler
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PSB21150HV1.4X; PSB21150HV14XP; SP000007578

3.2.1
The serial control interface (SCI) is compatible to the SPI interface of Motorola or
Siemens C510 family of microcontrollers.
The SCI consists of 4 lines: SCL, SDX, SDR and CS. Data is transferred via the lines
SDR and SDX at the rate given by SCL. The falling edge of CS indicates the beginning
of a serial access to the registers. The IPAC-X latches incoming data at the rising edge
of SCL and shifts out at the falling edge of SCL. Each access must be terminated by a
rising edge of CS. Data is transferred in groups of 8 bits with the MSB first.
Figure 8
Figure 8
Data Sheet
CS
SCL
SDR
SDX
CS
SCL
SDR
SDX
shows the timing of a one byte read/write access via the serial control interface.
Write Access
Read Access
Serial Control Interface (SCI)
Serial Control Interface Timing
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
7 6 5 4 3 2 1
Header
Header
0
write
read
'0'
'1'
7 6 5 4 3 2 1 0
Address
Address
35
Description of Functional Blocks
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
Data
Data
PSB/PSF 21150
21150_19
2003-01-30
IPAC-X