AT91SAM7SE256-CU Atmel, AT91SAM7SE256-CU Datasheet - Page 158

• Manufacturer Part Number: AT91SAM7SE256-CU
• Description: IC ARM7 MCU FLASH 256K 144-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256-CU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K 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: 144-LFBGA
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: EBI, SPI, TWI, USART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7SE-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: AT91SAM7SE-EK - EVAL BOARD FOR AT91SAM7SEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT91SAM7SE256-CJ; AT91SAM7SE256-CJ

21.8.1
Name:
Access:
Reset Value:
Offset:
Absolute Address: 0xFFFF FF80
• CS1A: Chip Select 1 Assignment
0 = Chip Select 1 is assigned to the Static Memory Controller.
1 = Chip Select 1 is assigned to the SDRAM Controller.
• CS2A: Chip Select 2 Assignment
0 = Chip Select 2 is assigned to the Static Memory Controller and NCS2, NCS5 and NCS6 behave as defined by the SMC.
1 = Chip Select 2 is assigned to the Static Memory Controller and the CompactFlash Logic (second slot) is activated.
Accessing the address space reserved to NCS5 and NCS6 may lead to an unpredictable outcome.
• CS3A: Chip Select 3 Assignment
0 = Chip Select 3 is only assigned to the Static Memory Controller and NCS3 behave as defined by the SMC.
1 = Chip Select 3 is assigned to the Static Memory Controller and the NAND Flash Logic is activated.
• CS4A: Chip Select 4 Assignment
0 = Chip Select 4 is assigned to the Static Memory Controller and NCS4, NCS5 and NCS6 behave as defined by the SMC.
1 = Chip Select 4 is assigned to the Static Memory Controller and the CompactFlash Logic (first slot) is activated.
Accessing the address space reserved to NCS5 and NCS6 may lead to an unpredictable outcome.
• NWPC: NWAIT Pin Configuration
0 = The NWAIT device pin is not connected to the External Wait Request input of the Static Memory Controller, this multi-
plexed pin can be used as a PIO.
1 = The NWAIT device pin is connected to the External Wait Request input of the Static Memory Controller.
158
31
23
15
–
–
–
7
–
SAM7SE512/256/32 Preliminary
EBI Chip Select Assignment Register
30
22
14
EBI_CSA
Read/Write
0x0
0x0
–
–
–
6
–
29
21
13
–
–
–
5
–
CS4A
28
20
12
–
–
–
4
CS3A
27
19
11
–
–
–
3
CS2A
26
18
10
–
–
–
2
CS1A
25
17
–
–
9
–
1
6222F–ATARM–14-Jan-11
NWPC
24
16
–
8
–
0
–