SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 177

• 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

10
Although the C161U provides a powerful set of on-chip peripherals and on-chip RAM
areas, these internal units only cover a small fraction of its address space of up to 2
MByte. The external bus interface allows to access external peripherals and additional
volatile and non-volatile memory. The external bus interface provides a number of
configurations, so it can be taylored to fit perfectly into a given application system.
Figure 43
Accesses to external memory or peripherals are executed by the integrated External Bus
Controller (EBC). The function of the EBC is controlled via the SYSCON register and the
BUSCONx and ADDRSELx registers. The BUSCONx registers specify the external bus
cycles in terms of address (mux/demux), data (16-bit/8-bit), chip selects and length
(waitstates / READY control / ALE / RW delay). These parameters are used for accesses
within a specific address area which is defined via the corresponding register
ADDRSELx.
The four pairs BUSCON1/ADDRSEL1...BUSCON4/ADDRSEL4 allow to define four
independent “address windows”, while all external accesses outside these windows are
controlled via register BUSCON0.
Data Sheet
P0L/P0H
P1L/P1H
DP3
P3
P4
ODP6
DP6
P6
Ports & Direction Control
Alternate Functions
P0L / P0H
P1L / P1H
DP3
P3
P4
ODP6
DP6
P6
PORT0 Data Registers
PORT1 Data Registers
Port 3 Direction Control Register
Port 3 Data Register
Port 4 Data Register
Port 6 Open Drain Control Register
Port 6 Direction Control Register
Port 6 Data Register
External Bus Interface
SFRs and Port Pins Associated with the External Bus Interface
Address Registers
PORT0
PORT1
ALE
RD
WR/WRL
BHE/WRH
ADDRSEL1
ADDRSEL2
ADDRSEL3
ADDRSEL4
EA
RSTIN
READY
177
ADDRSELx Address Range Select Register 1...4
BUSCONx
SYSCON
RP0H
Mode Registers
BUSCON0
BUSCON1
BUSCON2
BUSCON3
BUSCON4
Bus Mode Control Register 0...4
System Control Register
Port P0H Reset Configuration Register
Control Registers
External Bus Interface
Control Registers
SYSCON
RP0H
2001-04-19
C161U