SAM7S32 Atmel Corporation, SAM7S32 Datasheet - Page 128

• Manufacturer Part Number: SAM7S32
• Manufacturer: Atmel Corporation

Specifications of SAM7S32

• Flash (kbytes): 32 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 21
• Ext Interrupts: 21
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Figure 20-4. SAM7S32/16 Parallel Programming Timing, Write Sequence
Table 20-4.
20.2.4.2
Figure 20-5.
128
Step
1
2
3
4
5
6
SAM7S Series
Programmer Action
Sets MODE and DATA signals
Clears NCMD signal
Waits for RDY low
Releases MODE and DATA signals
Sets NCMD signal
Waits for RDY high
Read Handshaking
Write Handshake
SAM7S542/256/128/321/161 Parallel Programming Timing, Read Sequence
DATA[15:0]
MODE[3:0]
MODE[3:0]
DATA[7:0]
For details on the read handshaking sequence, refer to
NVALID
NVALID
NCMD
NCMD
NOE
NOE
RDY
RDY
1
1
2
2
Adress IN
ADDR
3
3
Waits for NCMD low
Latches MODE and DATA
Clears RDY signal
Executes command and polls NCMD high
Executes command and polls NCMD high
Sets RDY
Device Action
4
5
Z
4
6
7
Data OUT
5
8
9
Figure
10
11
X
12
20-5,
13
IN
Figure 20-6
Data I/O
Input
Input
Input
Input
Input
Input
6175L–ATARM–28-Jul-11
and
Table
20-5.