CL-PS7020-VC-A

OVERVIEW

The CL-PS7110 is designed for ultra-low-power applications such as organizers/PDAs, two-way pagers, smart phones, and hand-held internet browsers. The device’s core-logic functionality is built around an ARM710A microprocessor with 8 Kbytes of four-way set-associative unified cache.

FEATURES

■ Ultra low power
— Designed for applications that require long battery life while using standard AA/AAA batteries
— Average 20 mA in normal operation (everything on)
— Average 5 mA in idle mode (clock to the CPU stopped, everything else running)
— Average 3 µA in standby mode (realtime clock on and everything else stopped)
■ Performance matching 33-MHz Intel® ’486-based PC
— 15 Vax™-MIPS (Dhrystone®) at 18 MHz
■ ARM710A microprocessor
— ARM7 CPU
— 8 Kbytes of four-way set-associative cache
— MMU with 64-entry TLB (transition look-aside buffer)
— Little endian
■ DRAM controller
— Connects up to four banks of DRAM, with each bank being 32 bits wide and up to 256 Mbytes in size
■ ROM/SRAM/flash memory control
— Decodes eight separate memory segments of 256 Mbytes
— Each segment can be configured as 8, 16, or 32 bits wide and support page- mode access
— Programmable access time for conventional SRAM/ROM/flash memory
— Expansion device can also be a PC Card (PCMCIA) controller
■ Codec interface
— Provides all necessary clocks and timing pulses and performs serialization of the data stream (or vice versa) to or from standard telephony codecs
— Data transfer at 64 kbps
■ Synchronous serial interface
— Supports SPI1 or Microwire2-compatible interface
■ 36-bit general-purpose I/O
— Four 8-bit and one 4-bit GPIO port
— Supports scanning keyboard matrix
■ 16C550-style UART
— Supports bit rates up to 115.2 kbps
— Contains two 16-byte FIFOs for Tx and Rx
— Supports modem control signals
■ SIR (slow (9600–115.2 kbps) infrared) encoder
— IrDA (Infrared Data Association) SIR protocol encoder can be optionally switched into Tx and Rx signals of the UART up to 115 kbps
■ DC-to-DC converter interface
— Provides two 96-kHz clock outputs, whose duty ratio are programmable (from 1-in-16 to 15-in-16)
■ LCD controller
— Interfaces directly to a single-scan panel monochrome LCD
— Panel size is programmable and is any width (line length) from 16 to 1024 pixels in 16-pixel increments
— Video frame size programmable up to 128 Kbytes
— Bits per pixel programmable from 1, 2, or 4
— Two 32-bit palette registers to support 4-, 2-, or 1-bit pixel values for mapping to any of the 16 grayscale values
■ Two timer counters
■ Realtime clock (32-bit)