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PDF AT75C221-Q208 Data sheet ( Hoja de datos )
| Número de pieza | AT75C221-Q208 | |
| Descripción | Smart Internet Appliance Processor | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• ARM7TDMI® ARM® Thumb® Processor Core
– In-Circuit Emulator, 40 MHz operation
• 16-bit Fixed-point OakDSPCore®
– Up to 60 MHz operations
– 104K bytes of Integrated Fast RAM, Codec Interface
• Ethernet Bridge
– Dual Ethernet 10/100 Mbps MAC Interface
– 16-Kbyte Frame Buffer
• 1 K-Byte Boot ROM, Embedding a Boot Program
– Enable Application Download from DataFlash®
• External Bus Interface
– On-chip 32-bit SDRAM Controller
– 4 Chip Select Static Memory Controller
• Multi-level Priority, Individually Maskable, Vectored Interrupt Controller
• Three 16-bit Timer/Counters
• Two UARTs with Modem Control Lines
• Serial Peripheral Interface (SPI)
• Two PIO Controllers, Managing up to 48 General-purpose I/O Pins
• Supported by a Wide Range of Ready-to-use Application Software
– Multi-tasking Operating System, Networking
– Voice-processing Functions
• Available in a 208-lead PQFP Package and 256-ball BGA Package
• Power Supplies
– VDDIO 3.3V nominal
– VDDCORE and VDDOSC 1.8V nominal
• 0°C to + 70°C Operating Temperature Range
Smart Internet
Appliance
Processor
(SIAP™)
AT75C221
Summary
Description
The AT75C221, Atmel’s latest device in the family of smart internet appliance proces-
sors (SIAP™), is a high-performance processor designed for professional internet
appliance applications such as the Ethernet IP phone. The AT75C221 is built around
an ARM7TDMI microcontroller core running at 40 MHz with an OakDSPCore copro-
cessor running at 60 MHz and a dual Ethernet 10/100 Mbits/sec MAC interface.
In a typical standalone IP phone, the DSP handles the voice processing functions
(voice compression, acoustic echo cancellation, etc.) while the dual-port Ethernet
10/100 Mbits/sec MAC interface establishes the connection to the Ethernet physical
layer (PHY) that links the network and the PC. In such an application, the power of the
ARM7TDMI allows it to run a VoIP protocol stack as well as all the system control
tasks.
Atmel provides the AT75C221 with several software modules, including:
• A set of drivers for a Linux® kernel capable of driving the embedded peripherals.
• A comprehensive set of tunable DSP algorithms for voice processing, tailored to
be run by the DSP subsystem.
6033CS–INTAP–05/04
1 page  
256-ball BGA Package Pinout
Table 1. Pinout for 256-ball BGA Package
Pin Signal Name
Pin Signal Name
A1 GND
A2 PB9
A3 PB4
B18
B19
B20
TDI
NC(1)
NC(1)
A4 PB1
C1 PB10
A5 NDSRB
C2 PA28
A6 NRSTB
C3 DBW32
A7 RXDB
C4 PB6
A8 NDSRA
C5 PB2
A9 TXDA
C6 NRIB
A10 PA2
C7 NCTSB
A11 PA3
C8 NRIA
A12 PA6
C9 NCTSA
A13 PA10
C10 PA0
A14 PA13
C11 PA4
A15 PA15
C12 PA8
A16 PA19
A17
NC(1)
C13 PA12
C14 PA14
A18 PA23
C15 PA18
A19 TDO
A20
NC(1)
B1 BO256
B2 PB8
C16
C17
C18
C19
PA21
TCK
NC(1)
NC(1)
B3 PB7
C20 PA31
B4 PB3
D1 PB11
B5 PB0
D2 PA27
B6 NDTRB
D3 PA26
B7 TXDB
D4 GND
B8 NDCDA
D5 PB5
B9 NRSTA
D6 VDDIO
B10 PA1
D7 NDCDB
B11 PA5
D8 GND
B12 PA7
D9 NDTRA
B13 PA11
D10 RXDA
B14 VDDCORE
D11 VDDIO
B15 PA16
D12 PA9
B16 PA20
D13 GND
B17 TMS
D14 PA17
6033CS–INTAP–05/04
AT75C221 Summary
Pin
Signal Name
Pin
Signal Name
D15 VDDIO
H20 NSOE
D16 PA24
J1 MA_TXEN
D17 GND
J2 MA_TXD3
D18 PA29
J3 MA_TXD2
D19 VDDCORE J4 MA_TXD1
D20 IRQ1
J17 NWR
E1 STXA
E2 FSA
J18 NWE3
J19 NC(1)
E3 SCLKA
J20 NWE2
E4 PA25
K1 MA_RXD0
E17 PA30
K2 MA_TXCLK
E18 TST
K3 NC(1)
E19 IRQ0
E20
NC(1)
K4 VDDIO
K17 NWE1
F1 PB13
K18 NWE0
F2 PB12
K19 NCE3
F3 SRXA
K20 NCE2
F4 VDDIO
L1 MA_RXD1
F17 VDDIO
L2 MA_RXD2
F18 FIQ
F19
NC(1)
L3 MA_RXD3
L4 MA_RXER
F20 SPCK
L17 VDDIO
G1 MA_COL
G2 PB15
L18 NCE0
L19 NC(1)
G3 PB14
L20 NCE1
G4 NTRST
M1 MA_RXCLK
G17 NRST
M2 VDDCORE
G18 PA22
M3 MA_RXDV
G19 MOSI
M4 MA_MDC
G20 MISO
H1 MA_TXD0
M17
M18
PLLRC
NC(1)
H2 MA_TXER
M19 XTALOUT
H3 MA_CRS
M20 XTALIN
H4 GND
N1 MA_MDIO
H17 GND
N2 MA_LINK
H18 VDDIO
N3 MB_COL
H19 VDDCORE
N4 GND
5
5 Page 
AT75C221 Summary
Block Diagram
Figure 3. AT75C221 Block Diagram
JTAG Debug
Interface
ICE
ARM7TDMI MCU Core
Audio Codec
and I/O Lines
MII PHY
Interface
MII PHY
Interface
Interrupt and
Fast Interrupt
I/O Lines
I/O Lines
OakDSPCore
DSP Subsystem
Ethernet
10/100 Mbps
MAC Interface
Ethernet
10/100 Mbps
MAC Interface
ASB/ASB
Bridge
32k Bytes
SRAM
OSC.
PLL
System
Controller
Advanced
Interrupt
Controller
PIO Controller A
PIO Controller B
Peripheral Bridge
Boot ROM
External Bus
Interface
SDRAMC
SMC
Peripheral Data
Controller
SPI
USART A
USART B
Timer/Counter 0
Timer/Counter 1
Timer/Counter 2
16- or 32-bit data
Memory Bus
Serial Peripherals
Boot DataFlash
Serial Port
Serial Port
PWM Signals
PWM Signals
PWM Signals
6033CS–INTAP–05/04
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet AT75C221-Q208.PDF ] | |
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