D12312SVTEBL25 Renesas Electronics America, D12312SVTEBL25 Datasheet - Page 106
![IC H8S MCU ROMLESS 100-QFP](/photos/28/61/286108/100-tqfp_sml.jpg)
D12312SVTEBL25
Manufacturer Part Number
D12312SVTEBL25
Description
IC H8S MCU ROMLESS 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12312SVTEBL25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Other names
HD6412312SVTEBL25
HD6412312SVTEBL25
HD6412312SVTEBL25
- Current page: 106 of 1146
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Section 3 MCU Operating Modes
The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2318 F-ZTAT,
H8S/2317 F-ZTAT, H8S/2315 F-ZTAT, and H8S/2314 F-ZTAT actually access a maximum of 16
Mbytes.
Modes 4 to 6 are externally expanded modes that allow access to external memory and peripheral
devices.
The external expansion modes allow switching between 8-bit and 16-bit bus modes. After
program execution starts, an 8-bit or 16-bit address space can be set for each area, depending on
the bus controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-
bit access is selected for all areas, 8-bit bus mode is set. Note that the functions of each pin depend
on the operating mode.
Modes 10, 11, 14, and 15 are boot modes and user program modes in which the flash memory can
be programmed and erased. For details, see section 17, ROM.
The H8S/2318 F-ZTAT, H8S/2317 F-ZTAT, H8S/2315 F-ZTAT, and H8S/2314 F-ZTAT can
only be used in modes 4 to 7, 10, 11, 14, and 15. This means that the flash write enable pin and
mode pins must be set to select one of these modes.
Do not change the inputs at the mode pins during operation.
3.1.2
The ROMless and mask ROM versions have four operating modes (modes 4 to 7). The H8S/2319
F-ZTAT has six operating modes (modes 2 to 7). The H8S/2319C F-ZTAT has seven operating
mode (modes 1 to 7). The operating mode is determined by the mode pins (MD2 to MD0). The
CPU operating mode, enabling or disabling of on-chip ROM, and the initial bus width setting can
be selected as shown in table 3.2.
Table 3.2 lists the MCU operating modes.
Rev.7.00 Feb. 14, 2007 page 72 of 1108
REJ09B0089-0700
Operating Mode Selection (Mask ROM, ROMless, H8S/2319 F-ZTAT, and
H8S/2319C F-ZTAT)
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