Technical information

Section 2 Software Specifications when Using the SH7125 or SH7124
Rev. 4.00 Jan.13, 2010 Page 10 of 16
REJ10J1271-0400
Table 2.5 Multiplexed Functions
MCU Function 1 Function 2
SH7125 group FWE _ASEBRKAK/_ASEBRK
PA3/_IRQ1/RXD1 _TRST
PA4/_IRQ2/TXD1 TMS
PA7/TCLKB/SCK2 TCK
PA8/TCLKC/RXD2 TDI
PA9/TCLKD/TXD2/POE8 TDO
SH7124 group FWE _ASEBRKAK/_ASEBRK
PA3/_IRQ1/RXD1 _TRST
PA4/_IRQ2/TXD1 TMS
PA7/TCLKB/SCK2 TCK
PA8/TCLKC/RXD2 TDI
PA9/TCLKD/TXD2/POE8 TDO
The emulator pins are multiplexed with other pins. When the emulator is connected, function 1
cannot be used.
12. A-Mask Versions of Products in the SH7124 and SH7125 Groups
The SH71250A, SH71251A, SH71240A, and SH71241A do not have user debug interfaces
(H-UDI), so are not connectable to the emulator. If the emulator is to be used, use the
SH71252 (R5F71252) or SH71253 (R5F71253) instead of the SH71250A or SH71251A, and
use the SH71242 (R5F71242) or SH71243 (R5F71243) instead of the SH71240A or
SH71241A. Select the device you are using from the items in the [Select Emulator mode]
dialog box. The values of check sums in [Writing Flash Memory] mode will be calculated
according to the capacity of the internal flash memory of the device in use.