CY7C66113-PVC Cypress Semiconductor Corp, CY7C66113-PVC Datasheet - Page 19

• Manufacturer Part Number: CY7C66113-PVC
• Description: IC MCU 8K USB HUB 4 PORT 56TSSOP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C66113-PVC

• 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 ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-SSOP
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: CY3649 - PROGRAMMER HI-LO USB M8428-1339 - KIT LOW SPEED PERSONALITY BOARD
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 428-1330

It is possible for the WDR bit of the Processor Status and Control Register (0xFF) to be set following a POR event. If a firmware
interrogates the Processor Status and Control Register for a set condition on the WDR bit, the WDR bit should be ignored if the
POR (bit 3 of register 0xFF) bit is set.
8.0
The CY7C66x13 can be placed into a low-power state by setting the Suspend bit of the Processor Status and Control register.
All logic blocks in the device are turned off except the GPIO interrupt logic and the USB receiver. The clock oscillator and PLL,
as well as the free-running and WDTs, are shut down. Only the occurrence of an enabled GPIO interrupt or non-idle bus activity
at a USB upstream or downstream port wakes the part from suspend. The Run bit in the Processor Status and Control Register
must be set to resume a part out of suspend.
The clock oscillator restarts immediately after exiting suspend mode. The microcontroller returns to a fully functional state 1 ms
after the oscillator is stable. The microcontroller executes the instruction following the I/O write that placed the device into suspend
mode before servicing any interrupt requests.
The GPIO interrupt allows the controller to wake-up periodically and poll system components while maintaining a very low average
power consumption. To achieve the lowest possible current during suspend mode, all I/O should be held at V
applies to internal port pins that may not be bonded in a particular package.
Typical code for entering suspend is shown below:
9.0
Document #: 38-08024 Rev. *A
...
...
mov a, 09h
iowr FFh
nop
...
Suspend Mode
General-purpose I/O (GPIO) Ports
(Latch is Transparent
except in HAPI mode)
; All GPIO set to low-power state (no floating pins)
; Enable GPIO interrupts if desired for wake-up
; Set suspend and run bits
; Write to Status and Control Register – Enter suspend, wait for USB activity (or GPIO Interrupt)
; This executes before any ISR
; Remaining code for exiting suspend routine.
Interrupt
Enable
Interrupt
Controller
OE
Port Write
Reg_Bit
Port Read
Internal
Data Bus
STRB
GPIO
CFG
Data
In
Latch
Data
Interrupt
Latch
Data
Out
Latch
Figure 9-1. Block Diagram of a GPIO Pin
mode
2-bits
Q3*
Q1
14 k
V
CC
Q2
GPIO
PIN
*Port 0,1,2: Low I
Port 3: High I
sink
CC
CY7C66013
sink
CY7C66113
or Gnd. This also
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