AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 86

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

16.2.5
86
AT89C5132
Data Packet Format
Table 72. R1 Response Format (Normal Response)
Table 73. R2 Response Format (CID and CSD registers)
Table 74. R3 Response Format (OCR Register)
Table 75. R4 Response Format (Fast I/O)
Table 76. R5 Response Format
There are two types of data packets: stream and block. As shown in Figure 16-8, stream data
packets have an indeterminate length while block packets have a fixed length depending on the
block length. Each data packet is preceded by a Start bit: a low level on MCMD line and suc-
ceeded by an End bit: a high level on MCMD line. Due to the fact that there is no predefined end
Bit Position
Width (Bits)
Bit Position
Width (Bits)
Description
Bit Position
Width (Bits)
Description
Description
Bit Position
Width (Bits)
Description
Bit Position
Width (Bits)
Description
Value
Value
Value
Value
Value
Start bit
Start bit
Start bit
Start bit
47
‘0’
47
‘0’
1
47
1
‘0’
47
‘0’
1
1
Start bit
135
‘0’
1
Transmission bit
Transmission
Transmission
Transmission
46
‘0’
46
‘0’
bit
1
1
Transmission bit
46
‘0’
bit
46
‘0’
bit
1
1
134
‘0’
1
Command
Reserved
Command
Command
‘101000’
‘111111’
[45:40]
‘100111’
[45:40]
[45:40]
Index
45:40
Index
Index
6
6
6
6
-
[133:128]
Reserved
‘111111’
6
OCR register
Card Status
Argument
Argument
[39:8]
[39:8]
[39:8]
39:8
32
32
32
32
-
-
-
-
Argument
[127:1]
32
Reserved
‘1111111’
-
CRC7
CRC7
CRC7
[7:1]
[7:1]
[7:1]
7:1
7
7
7
7
-
-
-
4173E–USB–09/07
End bit
End bit
End bit
End bit
End bit
‘1’
0
1
‘1’
‘1’
‘1’
‘1’
0
1
0
1
0
1
0
1