NEC Barracuda, Service Manual

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Barracuda PDA Maintenance
6
1.2.2.1 CPU: Intel StrongARM SA1110-206MHz
The SA-1110 is a general-purpose, 32-bit RISC microprocessor with a 16 Kbyte instruction cache, an 8 Kbyte
write-back data cache, a minicache, a write buffer, a read buffer, and a memory management unit (MMU)
combined in a single chip. The SA-1110 is software compatible with the ARM * V4 architecture processor family
and can be used with ARM * support chips such as I/O, memory, and video.
Features of the SA-1110 CPU
High Performance -- 235 Dhrystone 2.1 MIPS @ 206 MHz
Low power (normal mode) -- <400 mW @ 1.75 V/206 MHz
Integrated clock generation
Internal phase-locked loop (PLL)
3.686 MHz oscillator
32.768 KHz oscillator
Power-management features
Normal (full-on) mode
Idle (power-down) mode
Sleep (power-down) mode
Big and little endian operating modes
3.3 V I/O interface
256-pin mini-BGA package (mBGA)
32-way set-associative caches
16 Kbyte instruction cache
8 Kbyte write-back data cach
32-entry memory-management units
Maps 4 Kbyte, 8 Kbyte, or 1 Mbyte
1.2.2 Main Board