SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 321

• 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

15
15.1
All USB data transfers will be initiated by the USB host. The host is also suspending the
device in order to save power and controls the remote wakeup. The device itself may
resume from suspend mode. The electrical interface and the protocol is compliant with
USB specification 1.1.
C161U provides eight endpoints: in addition to Endpoint Zero as the Default Control
Pipe, seven Endpoints can be configured. Each of these endpoints can be of type
isochronous, bulk or interrupt. Two configurations with alternate settings for multiple
modes of device operation will be supported.
C161U is designed to provide support for all USB device classes, including
Communication Device, Audio and HID Class.
The maximum packet length supported will be 1023 bytes.
Acknowledged (ACK) and Not Acknowledged (NACK) handshake will be generated by
Hardware (HW) within the UDC, whereas each individual endpoint can be STALLED by
Software (SW).
15.2
USB protocol is packet based and consists of the following key elements: tokens,
packets, transactions and transfers.
Tokens
Tokens will identify the type of packet in the Packet Identifier field (PID) of the token
packet. Four PIDs are defined: SOF (start of frame), SETUP (for device control), IN and
OUT (for control and other data).
Packets
Four types of packets are defined: SOF, token, data and handshake. Each packet begins
with a SYNC byte followed by the Packet Identifier (PID).
A SOF packet consists of the following fields:
A token packet consists of the following fields:
Data Sheet
– SYNC byte (8 bits)
– Packet Identifier (8 bits)
– Frame Number (11 bits)
– CRC-5 (5 bits)
– SYNC byte (8 bits)
– Packet Identifier (8 bits)
USB Features
USB Interface Controller
USB Protocol
321
USB Interface Controller
2001-04-19
C161U