CY7C67300-100AXI Cypress Semiconductor Corp, CY7C67300-100AXI Datasheet - Page 16

• 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

Registers
Some registers have different functions for a read vs. a write
access or USB host vs. USB device mode. Therefore, registers
of this type have multiple definitions for the same address.
The default register values listed in this data sheet may be
altered to some other value during the BIOS initialization. Refer
to the BIOS documentation for register initialization information.
Processor Control Registers
There are nine registers dedicated to general processor control.
Each of these registers are covered in this section and are
summarized in
CPU Flags Register [0xC000] [R]
Table 22. CPU Flags Register
Register Description
The CPU Flags register is a read only register that gives
processor flags status.
Global Interrupt Enable (Bit 4)
The Global Interrupt Enable bit indicates if the Global Interrupts
are enabled.
1: Enabled
0: Disabled
Negative Flag (Bit 3)
The Negative Flag bit indicates if an arithmetic operation results
in a negative answer.
1: MS result bit is ‘1’
0: MS result bit is not ‘1’
Document #: 38-08015 Rev. *J
Bit #
Field
Read/Write
Default
Bit #
Field
Read/Write
Default
Table
15
0
7
0
-
-
21.
...Reserved
14
0
6
0
-
-
13
0
5
0
-
-
Interrupt
Enable
Global
12
R
X
0
4
-
Reserved...
Table 21. Processor Control Registers
Overflow Flag (Bit 2)
The Overflow Flag bit indicates if an overflow condition occurred.
An overflow condition can occur if an arithmetic result was either
larger than the destination operand size (for addition) or smaller
than the destination operand must allow for subtraction.
1: Overflow occurred
0: Overflow did not occur
Carry Flag (Bit 1)
The Carry Flag bit indicates if an arithmetic operation resulted in
a Carry for addition, or Borrow for subtraction.
1: Carry/Borrow occurred
0: Carry/Borrow did not occur
Zero Flag (Bit 0)
The Zero Flag bit indicates if an instruction execution resulted in
a ‘0’.
1: Zero occurred
0: Zero did not occur
CPU Flags Register
Register Bank Register
Hardware Revision Register
CPU Speed Register
Power Control Register
Interrupt Enable Register
Breakpoint Register
USB Diagnostic Register
Memory Diagnostic Register
Negative
Flag
11
R
X
0
3
-
Register Name
Overflow
Flag
10
R
X
0
2
-
Carry
0xC000
0xC002
0xC004
0xC008
0xC00A
0xC00E
0xC014
0xC03C
0xC03E
Flag
R
X
9
0
1
Address
-
CY7C67300
R
R/W
R
R/W
R/W
R/W
R/W
W
W
Page 16 of 99
Zero
Flag
R
X
8
0
0
-
R/W
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