HD64F2636UF20 Renesas Electronics America, HD64F2636UF20 Datasheet - Page 794

• Manufacturer Part Number: HD64F2636UF20
• Description: IC H8S MCU FLASH 128K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2636UF20

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 21A ROM
(H8S/2636 Group)
Table 21A-1 Register Configuration
Register Name
Mode control register
Note: * Lower 16 bits of the address.
21A.2 Register Descriptions
21A.2.1 Mode Control Register (MDCR)
Note: * Determined by pins MD2 to MD0.
MDCR is an 8-bit register used to monitor the current H8S/2636 Group operating mode.
Bit 7—Reserved: Only 1 should be written to these bits.
Bits 6 to 3—Reserved: These bits are always read as 0 and cannot be modified.
Bits 2 to 0—Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins
MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to pins MD2 to
MD0. MDS2 to MDS0 are read-only bits, and cannot be modified. The mode pin (MD2 to MD0)
input levels are latched into these bits when MDCR is read. These latches are canceled by a reset.
21A.3 Operation
The on-chip ROM is connected to the CPU by a 16-bit data bus, and both byte and word data can
be accessed in one state. Even addresses are connected to the upper 8 bits, and odd addresses to
the lower 8 bits. Word data must start at an even address.
The on-chip ROM is enabled and disabled by setting the mode pins (MD2, MD1, and MD0).
These settings are shown in table 21A-2.
Page 744 of 1458
Initial value:
R/W:
Bit:
R/W
—
7
1
MDCR
Abbreviation
—
—
6
0
—
—
5
0
R/W
R/W
—
—
4
0
—
—
Initial Value
Undefined
0
3
MDS2
— *
H8S/2639, H8S/2638, H8S/2636,
R
2
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
H'FDE7
MDS1
Address *
— *
R
1
May 28, 2010
MDS0
— *
R
0