SH7046 Datasheet, PDF (84/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 3 MCU Operating Modes
The clock mode is selected by the input of MD2 and MD3 pins.
Table 3.2 Maximum Operating Clock Frequency for Each Clock Mode
Pin Setting
MD3
0
0
1
MD2
0
1
0
Maximum Operating Clock Frequency
12.5 MHz (Input clock × 1^*, maximum of input clock: 12.5 MHz)
25 MHz (Input clock × 2^*, maximum of input clock: 12.5 MHz)
40 MHz (Input clock × 4^*, maximum of input clock: 10 MHz)
1
1
50 MHz (Input clock × 4 for system clock, Input clock × 2 for
peripheral clock, maximum of input clock: 12.5 MHz)
Note: * The frequencies for the system and peripheral module clocks are the same.
3.2 Input/Output Pins
Table 3.3 describes the configuration of operating mode related pins.
Table 3.3 Operating Mode Pin Configuration
Pin Name
MD0
MD1
MD2
MD3
FWP
Input/Output
Input
Input
Input
Input
Input
Function
Designates operating mode through the level applied to this pin
Designates operating mode through the level applied to this pin
Designates clock mode through the level applied to this pin
Designates clock mode through the level applied to this pin
Pin for the hardware protection against programming/erasing the
on-chip flash memory
Rev. 4.00 Dec 05, 2005 page 40 of 564
REJ09B0270-0400