SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 167

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• 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): 1.8 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

Table 20-16. Signal Description List (Continued)
Note:
20.3.2
6257A–ATARM–20-Feb-08
Signal Name
TCK
TDI
TDO
TMS
1. See
Entering Serial Programming Mode
Figure 20-6
Function
JTAG TCK
JTAG Test Data In
JTAG Test Data Out
JTAG Test Mode Select
below.
Figure 20-6. The Charge Pump and the LCD Regulator are Not Used
The following algorithm puts the device in Serial Programming Mode:
Note:
• Apply GND, TST, CLKIN, FWUP and the supplies as described in
• Apply XIN clock.
• Wait for 10 ms.
• Reset the TAP controller clocking 5 TCK pulses with TMS set.
• Shift 0x2 into the IR register (IR is 4 bits long, LSB first) without going through the Run-Test-
• Shift 0x2 into the DR register (DR is 4 bits long, LSB first) without going through the Run-
• Shift 0xC into the IR register (IR is 4 bits long, LSB first) without going through the Run-Test-
Description List,” on page
Idle state.
Test-Idle state.
Idle state.
After reset, the device is clocked by the internal RC oscillator. Before clearing RDY signal, if an
external clock ( > 32 kHz) is connected to XIN, then the device will switch on the external clock.
Else, XIN input is not considered. An higher frequency on XIN speeds up the programmer
handshake.
External supply
158.
JTAG
VDDINLCD
VDDLCD
VDD3V6
VDDIO2
AT91SAM7L128/64 Preliminary
Output
Type
Input
Input
Input
Active
Level
Regulator
-
-
-
-
Voltage
Charge
Pump
LCD
Pulled-up input at reset
Pulled-up input at reset
Comments
Pulled-up input at reset
Table 20-1, “Signal
CAPP1
CAPM1
CAPP2
CAPM2
167