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2
Device Overview
2.1
Device Characteristics
SM320C6455-EP
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008
Table 2-1
, provides an overview of the C6455 DSP. The tables show significant features of the C6455
device, including the capacity of on-chip RAM, the peripherals, the CPU frequency, and the package type
with pin count.
Table 2-1. Characteristics of the C6455 Processor
HARDWARE FEATURES
C6455
EMIFA (64 bit bus width)
1
(clock source = AECLKIN or SYSCLK4)
DDR2 Memory Controller (32 bit bus width) [1.8 V I/O]
1
(clock source = CLKIN2)
EDMA3 (64 independent channels) [CPU/3 clock rate]
1
High-speed 1x/4x Serial Rapid IO Port
1
I2C
1
Peripherals
HPI (32- or 16 bit user selectable)
1 (HPI16 or HPI32)
Not all peripherals pins
are available at the same
PCI (32 bit), [66-MHz or 33-MHz]
1 (PCI66 or PCI33)
time (For more detail, see
McBSPs (internal CPU/6 or external clock source up
the
Device Configuration
2
to 100 Mbps)
section).
UTOPIA (8 bit mode, 50-MHz, Slave-only)
1
10/100/1000 Ethernet MAC (EMAC)
1
Management Data Input/Output (MDIO)
1
64 Bit Timers (Configurable)
2 64 bit
or
4 32 bit
(internal clock source = CPU/6 clock frequency)
General-Purpose Input/Output Port (GPIO)
16
VCP2 (clock source = CPU/3 clock frequency)
1
Decoder Coprocessors
TCP2 (clock source = CPU/3 clock frequency)
1
Size (Bytes)
2192K
32K-Byte (32KB) L1 Program Memory Controller
[SRAM/Cache]
On-Chip Memory
Organization
32KB Data Memory Controller [SRAM/Cache]
2096KB L2 Unified Memory/Cache
32KB L2 ROM
C64x+ Megamodule
Megamodule Revision ID Register (address location:
See
Section 5.6
,
Megamodule Revision
Revision ID
0181 2000h)
See
Section 3.6
,
JTAG ID (JTAGID) Register
JTAG BSDL_ID
JTAGID register (address location: 0x02A80008)
Description
Frequency
MHz
720, 850, 1000 (1 GHz), and 1200 (1.2 GHz)
1.39 ns (C6455-720), 1.17 ns (C6455-850),
Cycle Time
ns
1 ns (C6455 A-1000, -1000) [1-GHz CPU]
(1)
0.83 ns (C6455-1200) [1.2-GHz CPU]
1.25 V (A-1000/-1000/-1200)
Core (V)
1.2 V (-850/-720)
Voltage
1.25/1.2 [RapidIO],
I/O (V)
1.5/1.8 [EMAC RGMII], and
1.8 and 3.3 V [I/O Supply Voltage]
PLL1 and PLL1
CLKIN1 frequency multiplier
Bypass (x1), x15, x20, x25, x30, x32
Controller Options
CLKIN2 frequency multiplier
PLL2
x20
[DDR2 Memory Controller and EMAC support only]
697-Pin Flip-Chip Plastic BGA (ZTZ)
BGA Package
24 x 24 mm
697-Pin Flip-Chip Plastic BGA (GTZ)
(1)
The extended temperature device's (A-1000) electrical characteristics and ac timings are the same as those for the corresponding
commercial temperature devices (-1000).
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Device Overview
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