AT89C5131A-S3SUM Atmel, AT89C5131A-S3SUM Datasheet - Page 146

• Manufacturer Part Number: AT89C5131A-S3SUM
• Description: IC 8051 MCU FLASH 32K USB 52PLCC
• Manufacturer: Atmel
• Series: AT89C513xr

Specifications of AT89C5131A-S3SUM

• 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): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: 2-Wire, EUART, SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89STK-05
• Minimum Operating Temperature: - 40 C
• Package: 52PLCC
• Device Core: 8051
• Family Name: 89C
• Maximum Speed: 48 MHz
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

146
AT89C5130A/31A-M
Table 21-12. UBYCTHX Register
Reset Value = 00h
Bit Number
7-2
2-0
7
-
Bit Mnemonic Description
BYCT[10:8]
UBYCTHX (S:E3h)
USB Byte Count High Register X (X = EPNUM set in UEPNUM Register UEP-
NUM (S:C7h) USB Endpoint Number)
6
-
-
Reserved
The value read from these bits is always 0. Do not set these bits.
Byte Count MSB
Most Significant Byte of the byte count of a received data packet. The Least significant
part is provided by UBYCTLX Register UBYCTLX (S:E2h) USB Byte Count Low
Register X (X = EPNUM set in UEPNUM Register UEPNUM (S:C7h) USB Endpoint
Number) (see Figure 21-11 on page 145).
5
-
4
-
3
-
2
-
BYCT9
1
4337K–USB–04/08
BYCT8
0