SH7047 Datasheet, PDF (86/764 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series

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
MD2
Maximum Operating Clock Frequency
0
0
12.5 MHz (Input clock × 1*, maximum of input clock: 12.5 MHz)
0
1
25 MHz (Input clock × 2*, maximum of input clock: 12.5 MHz)
1
0
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 Function
Input
Designates operating mode through the level applied to this pin
Input
Designates operating mode through the level applied to this pin
Input
Designates clock mode through the level applied to this pin
Input
Designates clock mode through the level applied to this pin
Input
Pin for the hardware protection against programming/erasing the
on-chip flash memory
Rev. 2.00, 09/04, page 46 of 720