CY7C66113C-LFXC Cypress Semiconductor Corp, CY7C66113C-LFXC Datasheet - Page 11

• Manufacturer Part Number: CY7C66113C-LFXC
• Description: IC MCU 8K USB HUB 4 PORT 56VQFN
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C66113C-LFXC

• Applications: USB Hub/Microcontroller
• Core Processor: M8
• Program Memory Type: OTP (8 kB)
• Controller Series: USB Hub
• Ram Size: 256 x 8
• Interface: I²C, USB, HAPI
• Number Of I /o: 31
• Voltage - Supply: 4 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Controller Family/series: (8051) USB
• Ram Memory Size: 256Byte
• No. Of Timers: 1
• Digital Ic Case Style: QFN
• Operating Temperature Range: 0°C To +70°C
• No. Of Pins: 56
• Core Size: 8 Bit
• Embedded Interface Type: HAPI, I2C, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CY3649 - PROGRAMMER HI-LO USB M8428-1339 - KIT LOW SPEED PERSONALITY BOARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Programming Model
14-Bit Program Counter (PC)
The 14-bit PC allows access to up to 8 KB of PROM available
with the CY7C66x13C architecture. The top 32 bytes of the ROM
in the 8K part are reserved for testing purposes. The program
counter is cleared during reset, such that the first instruction
executed after a reset is at address 0x0000h. Typically, this is a
jump instruction to a reset handler that initializes the application
(see
The lower eight bits of the program counter are incremented as
instructions are loaded and executed. The upper six bits of the
program counter are incremented by executing an XPAGE
instruction. The last instruction executed within a 256-byte
“page” of sequential code should be an XPAGE instruction. The
assembler directive “XPAGEON” causes the assembler to insert
XPAGE instructions automatically. Because instructions are
either one or two bytes long, the assembler may occasionally
need to insert a NOP followed by an XPAGE to execute correctly.
The address of the next instruction to be executed, the carry flag,
and the zero flag are saved as two bytes on the program stack
during an interrupt acknowledge or a CALL instruction. The
program counter, carry flag, and zero flag are restored from the
program stack during a RETI instruction. Only the program
counter is restored during a RET instruction.
The program counter is not accessed directly by the firmware.
The program stack is examined by reading SRAM from location
0x00 and up.
Document Number: 38-08024 Rev. *D
Interrupt Vectors
on page 28).
Program Memory Organization
Figure 4. Program Memory Space with Interrupt Vector Table
After
Reset
14-bit PC
Address
0x0000
0x0002
0x0004
0x0006
0x0008
0x000A USB address A endpoint 1 interrupt vector
0x000C USB address A endpoint 2 interrupt vector
0x000E USB address B endpoint 0 interrupt vector
0x0010
0x0012
0x0014
0x0016
0x0018
0x001A Program Memory begins here
0x1FDF 8 KB (-32) PROM ends here.
CY7C66013C, CY7C66113C
Program execution begins here after a reset
USB bus reset interrupt vector
128 μs timer interrupt vector
1.024 ms timer interrupt vector
USB address A endpoint 0 interrupt vector
USB address B endpoint 1 interrupt vector
Hub interrupt vector
DAC interrupt vector
GPIO/HAPI interrupt vector
I
2
C interrupt vector
Page 11 of 59
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