CY7C63743-PXC Cypress Semiconductor Corp, CY7C63743-PXC Datasheet - Page 35

• Manufacturer Part Number: CY7C63743-PXC
• Description: IC MCU 8K USB/PS2 LS 24DIP
• Manufacturer: Cypress Semiconductor Corp
• Series: enCoRe™r

Specifications of CY7C63743-PXC

• Applications: USB Microcontroller
• Core Processor: M8B
• Program Memory Type: OTP (8 kB)
• Controller Series: CY7C637xx
• Ram Size: 256 x 8
• Interface: PS2, USB
• Number Of I /o: 16
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 24-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-1621

USB Mode Tables
The following tables give details on mode setting for the USB Serial Interface Engine (SIE) for both the control endpoint (EP0) and
non-control endpoints (EP1 and EP2).
Table 8. USB Register Mode Encoding for Control and Non-Control Endpoints
Note
Mode Column:
The 'Mode' column contains the mnemonic names given to the
modes of the endpoint. The mode of the endpoint is determined
by the four-bit binaries in the 'Encoding' column as discussed
below. The Status IN and Status OUT modes represent the
status IN or OUT stage of the control transfer.
Encoding Column:
The contents of the 'Encoding' column represent the Mode Bits
[3:0] of the Endpoint Mode Registers (Figure 16 and Figure ).
The endpoint modes determine how the SIE responds to
different tokens that the host sends to the endpoints. For
example, if the Mode Bits [3:0] of the Endpoint 0 Mode Register
(Figure 16) are set to '0001', which is NAK IN/OUT mode as
shown in
handshake in response to SETUP tokens and NAK any IN or
OUT tokens. For more information on the functionality of the
Serial Interface Engine (SIE), see Section .
SETUP, IN, and OUT Columns:
Depending on the mode specified in the 'Encoding' column, the
'SETUP', 'IN', and 'OUT' columns contain the device SIE's
responses when the endpoint receives SETUP, IN, and OUT
tokens respectively.
Document #: 38-08022 Rev. *D
3. STALL bit is the bit 7 of the USB Non-Control Device Endpoint Mode registers. Refer to Section for more explanation.
Disable
NAK IN/OUT
Status OUT Only
STALL IN/OUT
Ignore IN/OUT
Reserved
Status IN Only
Reserved
NAK OUT
ACK OUT(
ACK OUT
NAK OUT - Status IN
ACK OUT - NAK IN
NAK IN
ACK IN
ACK IN(
NAK IN - Status OUT
ACK IN - Status OUT
Mode
(STALL
STALL
Table 8
(STALL
STALL
[3]
[3]
=0)
=1)
[3]
[3]
above, the SIE of the part will send an ACK
=1)
=0)
Encoding
0000
0001
0010
0011
0100
0101
0110
1000
1001
1001
1010
1011
1100
1101
1101
0111
1110
1111
SETUP
Accept
Accept
Accept
Accept
Accept
Accept
Accept
Accept
Accept
Ignore
Ignore
Ignore
Ignore
Ignore
Ignore
Ignore
Ignore
Ignore
TX 0 Byte
TX Count
TX 0 Byte
TX Count
TX Count
STALL
STALL
STALL
Ignore
Ignore
Ignore
Ignore
Ignore
Ignore
NAK
NAK
NAK
NAK
IN
Always
STALL
STALL
STALL
Ignore
Check
Ignore
Ignore
Ignore
Ignore
Ignore
Check
Check
OUT
NAK
NAK
ACK
NAK
ACK
A 'Check' in the Out column means that upon receiving an OUT
token the SIE checks to see whether the OUT is of zero length
and has a Data Toggle (Data1/0) of 1. If these conditions are true,
the SIE responds with an ACK. If any of the above conditions is
not met, the SIE will respond with either a STALL or Ignore.
Table 10
A 'TX Count' entry in the IN column means that the SIE will
transmit the number of bytes specified in the Byte Count Bit [3:0]
of the Endpoint Count Register (Figure 18) in response to any IN
token.
A 'TX 0 Byte' entry in the IN column means that the SIE will
transmit a zero byte packet in response to any IN sent to the
endpoint. Sending a 0 byte packet is to complete the status stage
of a control transfer.
An 'Ignore' means that the device sends no handshake tokens.
An 'Accept' means that the SIE will respond with an ACK to a
valid SETUP transaction.
Comments Column:
Some Mode Bits are automatically changed by the SIE in
response to many USB transactions. For example, if the Mode
Bits [3:0] are set to '1111' which is ACK IN-Status OUT mode as
shown in
On Control endpoint, after successfully sending an ACK
handshake to a SETUP packet, the SIE forces the
endpoint mode (from modes other than 0000) to 0001.
The mode is also changed by the SIE to 0001 from mode
1011 on issuance of ACK handshake to an OUT.
For Control endpoints
For Control endpoints
For Control endpoints
This mode is changed by the SIE to mode 1000 on
issuance of ACK handshake to an OUT
This mode is changed by the SIE to mode 0001 on
issuance of ACK handshake to an OUT
An ACK from mode 1101 changes the mode to 1100
This mode is changed by the SIE to mode 1100 on
issuance of ACK handshake to an IN
An ACK from mode 1111 changes the mode to 1110
This mode is changed by the SIE to mode 1110 on
issuance of ACK handshake to an IN
Ignore all USB traffic to this endpoint
Reserved
For Control Endpoints
Reserved
In mode 1001, after sending an ACK handshake to an
OUT, the SIE changes the mode to 1000
Comments
gives a detailed analysis of all possible cases.
Table
8, the SIE will change the endpoint Mode Bits
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