TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 269

• Manufacturer Part Number: TX4939XBG-400
• Manufacturer: Toshiba

Specifications of TX4939XBG-400

• Cpu Core: TX49/H4 90nm
• Clock Mhz/max Mips: 400/520
• Inst./data Cache: 32KB (4 Way)/32KB (4 Way)
• Tlb: x
• 1cycle Mac: x
• Volts (v): 1.25/2.5/3.3
• Peripherals: DDR, NAND, ATA, ETHERNET, SECURITY, FPU, MMU, SPI, I2S, I2C, PCI, VIDEO, UART, TIMER, RTC
• Companion Chip: TC86C001FG
• Package: PGBA456

TMR
13.1. Features
The TX4939 has an on-chip 6-channel timer/counter.
Rev. 3.1 November 1, 2005
Note:
32-bit Up Counter: 6 Channels
□ Featured as down-counter like usage
Interval Timer Mode (Channel 0, 1, 2, 3, 4, 5)
Pulse Generator Mode (Channel 0, 1)
Watchdog Timer Mode (Channel 2)
Timer Output Signal (TIMER[1:0])
Watchdog Timer Reset Output (WDRST*):
This timer function has additional feature from TX4938's TIMER as follows.
The register TMTRRn (Timer Read Register) was read only.
In TX4939, this register accepts data write to set appropriate 32-bit data as a counter
starting value.
Although, this register is now R/W (Read/Write), but the register name remain same for
the software compatibility.
Chapter 13. Timer/Counter Controller
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Toshiba RISC Processor
TX4939
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