AT91SAM7S32B-MU Atmel, AT91SAM7S32B-MU Datasheet - Page 129

• 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: -

Figure 20-6. AT91SAM7S32/16 Parallel Programming Timing, Read Sequence
Table 20-5.
6175K–ATARM–30-Aug-10
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
Programmer Action
Sets MODE and DATA signals
Clears NCMD signal
Waits for RDY low
Sets DATA signal in tristate
Clears NOE signal
Waits for NVALID low
Reads value on DATA Bus
Sets NOE signal
Waits for NVALID high
Sets DATA in output mode
Sets NCMD signal
Waits for RDY high
Read Handshake
MODE[3:0]
DATA[7:0]
NVALID
NCMD
NOE
RDY
1
2
Adress IN
ADDR
3
Device Action
Waits for NCMD low
Latch MODE and DATA
Clears RDY signal
Waits for NOE Low
Sets DATA bus in output mode and outputs the
flash contents.
Clears NVALID signal
Waits for NOE high
Sets DATA bus in input mode
Sets NVALID signal
Waits for NCMD high
Sets RDY signal
4
5
AT91SAM7S Series Preliminary
Z
6
7
Data OUT
8
9
10
11
X
12
13
IN
DATA I/O
Input
Input
Input
Input
Tristate
Output
Output
Output
Output
X
Input
Input
Input
129