AT91M63200-25AI Atmel, AT91M63200-25AI Datasheet - Page 109

• Manufacturer Part Number: AT91M63200-25AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M63200-25AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-TQFP, 176-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

SPI Chip Select Register
Register Name:
Access Type:
•
•
•
CPOL: Clock Polarity
0 = The inactive state value of SPCK is logic level zero.
1 = The inactive state value of SPCK is logic level one.
CPOL is used to determine the inactive state value of the serial clock (SPCK). It is used with NCPHA to produce a
desired clock/data relationship between master and slave devices.
NCPHA: Clock Phase
0 = Data is changed on the leading edge of SPCK and captured on the following edge of SPCK.
1 = Data is captured on the leading edge of SPCK and changed on the following edge of SPCK.
NCPHA determines which edge of SPCK causes data to change and which edge causes data to be captured. NCPHA
is used with CPOL to produce a desired clock/data relationship between master and slave devices.
BITS: Bits Per Transfer
The BITS field determines the number of data bits transferred. Reserved values should not be used.
BITS[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
31
23
15
7
Bits per Transfer
30
22
14
SP_CSR0...SP_CSR3
Read/Write
6
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
10
11
12
13
14
15
16
8
9
BITS
29
21
13
5
28
20
12
4
DLYBCT
DLYBS
SCBR
27
19
11
3
–
26
18
10
2
–
AT91M63200
NCPHA
25
17
9
1
CPOL
24
16
8
0
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