SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 171

• 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

Table 30
Figure 39
The chip select lines of Port 6 additionally have an internal weak pullup device. This
device is switched on under the following conditions:
• Always during reset
• If the Port 6 line is used as a chip select output, and the C161U is in Hold mode
This feature is implemented to drive the chip select lines high during reset in order to
avoid multiple chip selection, and to allow another master to access the external memory
via the same chip select lines (Wired-AND), while the C161U is in Hold mode.
Data Sheet
Port 6
Pin
P6.0
P6.1
P6.2
P6.3
P6.5
P6.6
P6.7
(invoked through HOLD), and the respective pin driver is in push/pull mode (ODP6.x
= ‘0’).
Port 6
Alternate Function
General Purpose
Input/Output
Altern. Function
CSSEL = 10
Gen. purpose I/O
Gen. purpose I/O
Gen. purpose I/O
Gen. purpose I/O
HOLDExternal hold request input
HLDAHold acknowledge output
BREQBus request output
Port 6 I/O and Alternate Functions
Alternate Functions of Port 6
-
-
-
-
-
-
-
-
P6.7
P6.6
P6.5
-
P6.3
P6.2
P6.1
P6.0
Altern. Function
CSSEL = 01
Chip select CS0
Chip select CS1
Gen. purpose I/O
Gen. purpose I/O
171
a)
-
-
-
-
-
-
-
-
BREQ
HLDA
HOLD
-
CS3
CS2
CS1
CS0
Altern. Function
CSSEL = 00
Chip select CS0
Chip select CS1
Chip select CS2
Gen. purpose I/O
Altern. Function
CSSEL = 11
Chip select CS0
Chip select CS1
Chip select CS2
Chip select CS3
Parallel Ports
2001-04-19
C161U