AT91SAM7S32B-MU Atmel, AT91SAM7S32B-MU Datasheet - Page 307

• Manufacturer Part Number: AT91SAM7S32B-MU
• Description: IC MCU ARM7 32KB FLASH 48-VQFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S32B-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

29.7.2
Register Name:
Address Type:
• IADRSZ: Internal Device Address Size
Table 29-5.
• MREAD: Master Read Direction
0 = Master write direction.
1 = Master read direction.
• DADR: Device Address
The device address is used to access slave devices in read or write mode.
6175K–ATARM–30-Aug-10
31
23
15
–
–
–
7
–
0
0
1
1
IADRSZ[9:8]
TWI Master Mode Register
30
22
14
TWI_MMR
Read-write
–
–
6
–
0
1
0
1
No internal device address (Byte command protocol)
One-byte internal device address
Two-byte internal device address
Three-byte internal device address
29
21
13
–
–
5
–
MREAD
28
20
12
–
4
–
AT91SAM7S Series Preliminary
DADR
27
19
11
–
–
3
–
26
18
10
–
–
2
–
25
17
–
9
1
–
IADRSZ
24
16
–
8
0
–
307