AT91FR40162S-CJ Atmel, AT91FR40162S-CJ Datasheet - Page 24
AT91FR40162S-CJ
Manufacturer Part Number
AT91FR40162S-CJ
Description
IC ARM MCU FLASH 1K 121BGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91FR40162S-CJ.pdf
(210 pages)
Specifications of AT91FR40162S-CJ
Core Processor
ARM7
Core Size
16/32-Bit
Speed
75MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
2MB (1M x 16)
Program Memory Type
FLASH
Ram Size
256K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
121-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91FR40162S-CJ
Manufacturer:
ATMEL
Quantity:
455
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10.5
24
Byte Write or Byte Select Access
AT91FR40162S Preliminary
Each chip select with a 16-bit data bus can operate with one of two different types of write
access:
This option is controlled by the BAT field in the EBI_CSR (Chip Select Register) for the corre-
sponding chip select.
Byte Write Access is used to connect 2 x 8-bit devices as a 16-bit memory page.
Figure 10-6
Figure 10-6. Memory Connection for 2 x 8-bit Data Busses
Byte Select Access is used to connect 16-bit devices in a memory page.
• Byte Write Access supports two byte write and a single read signal.
• Byte Select Access selects upper and/or lower byte with two byte select lines, and separate
• The signal A0/NLB is not used.
• The signal NWR1/NUB is used as NWR1 and enables upper byte writes.
• The signal NWR0/NWE is used as NWR0 and enables lower byte writes.
• The signal NRD/NOE is used as NRD and enables half-word and byte reads.
• The signal A0/NLB is used as NLB and enables the lower byte for both read and write
• The signal NWR1/NUB is used as NUB and enables the upper byte for both read and write
• The signal NWR0/NWE is used as NWE and enables writing for byte or half word.
• The signal NRD/NOE is used as NOE and enables reading for byte or half word.
read and write signals.
operations.
operations.
shows how to connect two 512K x 8-bit devices in parallel on NCS2.
EBI
D8 - D15
A1 - A19
D0 - D7
NWR1
NWR0
NCS2
NRD
A0
D0 - D7
A0 - A18
Write Enable
Read Enable
Memory Enable
D8 - D15
A0 - A18
Write Enable
Read Enable
Memory Enable
6174B–ATARM–07-Nov-05
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