tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 387

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

3.5.2
100 V
a.c.
Figure 3.7 Example of a Connection Between a Host Controller and a Target Board
Host-to-Target Connection Examples
TMP1940FDBF is installed on the board. In this mode, channel 0 of the SIO (SIO0) of the
TMP1940FDBF is connected to a host controller, which is to issue commands to the target board.
Figure 3.7 and Figure 3.8 show examples of host-to-target connections.
ROM
In Single Boot mode, serial transfer is used to re-program the flash memory while the
RS232C
PC
MCU
Reg.
RAM
Host Controller
(When the SIO0 is Configured for UART Mode)
VCC
Mode Control
Mode Control
TMP1940FDBF-29
VCC
TMODE
RESET
VCC
VSS
RX
TX
Selection
Reg.
Mode
Logic
Boot
TMP1940FDBF
Target Board
RXD0 (P91)
TXD0 (P90)
DVSS
DVCC (3.3 V)
BW1
BW0
NMI
RESET
BOOT (P85)
TMP1940FDBF