HD6417034AFI20 Renesas Electronics America, HD6417034AFI20 Datasheet - Page 491

• Manufacturer Part Number: HD6417034AFI20
• Description: IC SUPERH MPU ROMLESS 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7030r

Specifications of HD6417034AFI20

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

Section 18 RAM
Section 18 RAM
18.1
Overview
The SH7032 microcomputer has 8-kbytes of on-chip RAM; the SH7034 has 4 kbytes. The on-chip
RAM is linked to the CPU and direct memory access controller (DMAC) with a 32-bit data bus
(figure 18.1). The CPU can access data in the on-chip RAM in byte, word, or longword units. The
DMAC can access byte or word data. On-chip RAM data can always be accessed in one state,
making the RAM ideal for use as a program area, stack area, or data area, which require high-
speed access. The contents of the on-chip RAM are held in both the sleep and standby modes.
Memory area 7 addresses H'FFFE000 to H'FFFFFFF are allocated to the on-chip RAM in the
SH7032. In the SH7034, addresses H'FFFF000 to H'FFFFFFF are allocated.
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