SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 355

• 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

17
The built-in bootstrap loader of the C161U provides a mechanism to load the startup
program, which is executed after reset, via the serial interface.
The bootstrap loader moves code/data into the internal RAM, but it is also possible to
transfer data via the serial interface into an external RAM using a second level loader
routine. It may be used to provide lookup tables or may provide “core-code”, ie. a set of
general purpose subroutines, eg. for I/O operations, number crunching, system
initialization, etc.
Figure 111
The Bootstrap Loader may be used to load the complete application software into
ROMless systems, it may load temporary software into complete systems for testing or
calibration.
Data Sheet
CSP:IP
RSTIN
1)
2)
3)
4)
5)
@ f
6)
P0L.4
RxD0
TxD0
Caution: TxD0 is only driven a certain time after reception of the zero byte (2
BSL initialization time, > 2 s @ f
Zero byte (1 start bit, eight ‘0’ data bits, 1 stop bit), sent by host.
Identification byte, sent by C161U.
32 bytes of code / data, sent by host.
Internal Boot ROM.
CPU
= 20 MHz).
Bootstrap Loader
Bootstrap Loader Sequence
1)
6)
2)
5)
Int. Boot ROM BSL-routine
CPU
3)
= 20 MHz.
355
4)
user software
32 bytes
Bootstrap Loader
2001-04-19
C161U
s