CY7C67300-100AXI Cypress Semiconductor Corp, CY7C67300-100AXI Datasheet - Page 31

• Manufacturer Part Number: CY7C67300-100AXI
• Description: IC USB HOST/PERIPH CNTRL 100LQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-Host™r
• Type: Host Programmable Embedded USBr

Specifications of CY7C67300-100AXI

• Package / Case: 100-LQFP
• Applications: USB Host/Peripheral Controller
• Core Processor: CY16
• Program Memory Type: ROM (8 kB)
• Controller Series: CY7C673xx
• Ram Size: 16K x 8
• Interface: SPI Serial, USB, HPI
• Number Of I /o: 32
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 80 mA
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CY4640 - KIT MASS STORAGE REF DESIGNCY3663 - KIT DEV EZ-OTG/EZ-HOST
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-1865; CY7C67300-100AXI

Register Description
The Host n Count register is used to hold the number of bytes
(packet length) for the current transaction. The maximum packet
length is 1023 bytes in ISO mode. The Host Count value is used
to determine how many bytes to transmit, or the maximum
number of bytes to receive. If the number of received bytes is
greater then the Host Count value then an overflow condition is
flagged by the Overflow bit in the Host n Endpoint Status register.
Port Select (Bit 14)
The Port Select bit selects which of the two active ports is
selected and is summarized in
1: Port 1B or Port 2B is enabled
0: Port 1A or Port 2A is enabled
Host n Endpoint Status Register [R]
■
■
Table 52. Host n Endpoint Status Register
Register Description
The Host n Endpoint Status register is a read only register that
provides status for the last USB transaction.
Overflow Flag (Bit 11)
The Overflow Flag bit indicates that the received data in the last
data transaction exceeded the maximum length specified in the
Host n Count register. The Overflow Flag must be checked in
response to a Length Exception signified by the Length
Exception Flag set to ‘1’.
1: Overflow condition occurred
0: Overflow condition did not occur
Underflow Flag (Bit 10)
The Underflow Flag bit indicates that the received data in the last
data transaction was less than the maximum length specified in
the Host n Count register. The Underflow Flag must be checked
in response to a Length Exception signified by the Length
Exception Flag set to ‘1’.
1: Underflow condition occurred
0: Underflow condition did not occur
Document #: 38-08015 Rev. *J
Bit #
Field
Read/Write
Default
Bit #
Field
Read/Write
Default
Host 1 Endpoint Status Register 0xC086
Host 2 Endpoint Status Register 0xC0A6
Flag
Stall
15
R
0
7
0
-
Table
NAK
Flag
14
R
0
6
0
-
51.
Reserved
Exception
Length
Flag
13
R
0
5
0
-
Reserved
12
0
4
0
-
-
Table 51. Port Select Definition
Count (Bits [9:0])
The Count field sets the value for the current transaction data
packet length. This value is retained when switching between
host and device mode, and back again.
Reserved
Write all reserved bits with ’0’.
Stall Flag (Bit 7)
The Stall Flag bit indicates that the peripheral device replied with
a Stall in the last transaction.
1: Device returned Stall
0: Device did not return Stall
NAK Flag (Bit 6)
The NAK Flag bit indicates that the peripheral device replied with
a NAK in the last transaction.
1: Device returned NAK
0: Device did not return NAK
Length Exception Flag (Bit 5)
The Length Exception Flag bit indicates that the received data in
the data stage of the last transaction does not equal the
maximum Host Count specified in the Host n Count register. A
Length Exception can either mean an overflow or underflow and
the Overflow and Underflow flags (bits 11 and 10, respectively)
must be checked to determine which event occurred.
1: An overflow or underflow condition occurred
0: An overflow or underflow condition did not occur
Port Select
Sequence
Overflow
Status
Flag
11
R
R
0
3
0
0
1
Underflow
Timeout
Flag
Flag
Host/Device 1
10
R
0
R
2
0
Active Port
A
B
Error
Flag
9
0
R
-
1
0
Reserved
Host/Device 2
CY7C67300
Active Port
Page 31 of 99
A
B
ACK
Flag
8
0
R
-
0
0
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