SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 390

• 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

Data Sheet
Connection to Output
Signal f
The priority ranking is: P3.15 < FOUT < CLKOUT.
Figure 121
Note: For the generation of f
Flexible Clock Management
This module especially serves for power management support. Flexible clock
management includes programmable system slow down with additional control of power
down and optional real time clock. The slowdown operation is achieved by dividing the
oscillator clock by a programmable factor (1...32) resulting in a low frequency device
operation which significantly reduces the overall power consumption. The PLL may be
completely switched off in this mode.
This module also controls the oscillator selection (main or auxiliary) for Real Time Clock
and for Slow Down Divider. During Power Down mode, this block controls the operation
of RTC and ports.
The clock generation is controlled via register SYSCON2.
SYSCON2 (F1D0
LOCK
CLK
r
15
While f
port latch P3.15 must be ’0’ in order to maintain the fOUT inactive level on the pin.
Clock Management Module
FOUT_active
14
OUT
PortLatch
Direction
CLKEN
f
f
OUT
CPU
in the C161U is an alternate function of pin P3.15/CLKOUT/FOUT.
13
OUT
Connection to Port Logic (Functional Approach)
CLKREL
H
is disabled the pin is controlled by the port latch (see figure above). The
/ E8
12
rw
H
) ESFR-b Reset Value: 0000.0000.UU00.0000
11
10
OUT
pin FOUT must be switched to output, ie. DP3.15=’1’.
CLKCON
9
rw
MUX
0
1
8
"1"
390
SCS
rw
7
RCS
MUX
MUX
0
1
rw
0
1
6
5
PDCON
System Control Unit (CSCU)
rw
4
B
3
reserved
2
rw
2001-04-19
1
C161U
0