SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 173

• 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

The bus arbitration signals HOLD, HLDA and BREQ are selected with bit HLDEN in
register PSW. When the bus arbitration signals are enabled via HLDEN, also these pins
are switched automatically to the appropriate direction. Note that the pin drivers for
HLDA and BREQ are automatically enabled, while the pin driver for HOLD is
automatically disabled.
Figure 41
Data Sheet
B
n
e
n
a
u
r
s
t
l
Block Diagram of Pin P6.5 (HOLD)
Write ODP6.y
Read ODP6.y
Port Output
Open Drain
Write DP6.y
Read DP6.y
Direction
Read P6.y
Write P6.y
Latch
Latch
Latch
Alternate
Data Input
MUX
1
0
173
Clock
Latch
Input
Output
Buffer
MCB01983
Parallel Ports
2001-04-19
P6.5/HOLD
C161U