SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 147

• Manufacturer Part Number: SAF-C161U-LF V1.3
• Description: IC MCU ISDN 16BIT TTL TQFP-100
• Manufacturer: Infineon Technologies
• Series: C16xxr

Specifications of SAF-C161U-LF V1.3

• Core Processor: C166
• Core Size: 16-Bit
• Speed: 36MHz
• Connectivity: EBI/EMI, SPI, UART/USART, USB
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: SAFC161ULFV1.3X; SAFC161ULFV13XP; SP000007502

C161U
Parallel Ports
8.2
PORT1
The two 8-bit ports P1H and P1L represent the higher and lower part of PORT1,
respectively. Both halfs of PORT1 can be written (eg. via a PEC transfer) without
effecting the other half.
If this port is used for general purpose I/O, the direction of each line can be configured
via the corresponding direction registers DP1H and DP1L.
Each port line can be switched into push/pull or open drain mode via the open drain
control register ODP1L and ODP1H.
For port pins configured as input (via DP1x or alternate function), an internal pull
transistor is connected to the pad if register P1xPUDEN = ’1’, no matter wheter the
C161U is in normal operation mode or in power down mode. Either pulldown transistor
or pullup transistor will be selected via P1xPUDSEL.
For port pins configured as output, the internal pull transistors are always disabled. The
output driver is disabled in power down mode unless P1xPHEN = ’1’.
After reset, P1xPUDEN and P1xPUDSEL are set to LOW signal.
Data Sheet
147
2001-04-19