AT89C5131A-RDTIL Atmel, AT89C5131A-RDTIL Datasheet - Page 132
AT89C5131A-RDTIL
Manufacturer Part Number
AT89C5131A-RDTIL
Description
IC 8051 MCU FLASH 32K USB 64VQFP
Manufacturer
Atmel
Series
AT89C513xr
Specifications of AT89C5131A-RDTIL
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Other names
AT89C5131-RDTIL
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Upstream Resume
Figure 67. Example of REMOTE WAKEUP Management
132
AT89C5131A-L
SET_FEATURE: DEVICE_REMOTE_WAKEUP
Detection of a SUSPEND State
Upstream RESUME Sent
A USB device can be allowed by the Host to send an upstream resume for Remote
Wake Up purpose.
W h e n
DEVICE_REMOTE_WAKEUP, the firmware will set to 1 the RMWUPE bit in the USB-
CON register to enable this functionality. RMWUPE value will be 0 in the other cases.
If the device is in SUSPEND mode, the USB controller can send an upstream resume by
clearing first the SPINT bit in the USBINT register and by setting then to 1 the SDRM-
WUP bit in the USBCON register. The USB controller sets to 1 the UPRSM bit in the
USBCON register. All clocks must be enabled first. The Remote Wake is sent only if the
USB bus was in Suspend state for at least 5 ms. When the upstream resume is com-
pleted, the UPRSM bit is reset to 0 by hardware. The firmware will then clear the
SDRMWUP bit.
UPRSM = 1
t h e
U S B
SPINT
UPRSM
c o n t r o l l e r
Suspend Management
USB Controller Init
Clear SDRMWUP
Set SDMWUP
Set RMWUPE
Enable Clocks
Clear SPINT
r e c e i v e s
t h e
Need USB Resume
S E T _ F E A T U R E
4338F–USB–08/07
r e q u e s t :
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