Toshiba H1 Series Data Book page 53

3.4.4 Downloading a User Program via UART
(1) Connection example
Figure 3.4.4 shows an example of connections for downloading a user program via
UART (using a 16-bit NOR Flash memory device as program memory).
PC
Note: When USB is not used, add a pull-up or pull-down resistor to the D+ and D- pins to prevent flow-through
current.
(2) UART interface specifications
SIO channel 0 is used for downloading a user program.
The UART communication format in BOOT mode is shown below. Before booting, the
PC must also be set up with the same conditions.
Although the default baud rate is 9600 bps, this can be changed as shown in
3.4.8.
Serial transfer mode:
Data length
Parity bit
STOP bit
Handshake
Baud rate (default)
UART 3 pins
TXD
TXD0 P90 (OUT)
Level
RXD
RXD0, P91 (IN)
Shifter
RTS
AM0
AM1
Figure 3.4.4 UART Connection Example
: UART (asynchronous) mode, full-duplex
: 8 bits
: None
: 1 bit
: None
: 9600 bps
92CZ26A-50
D+ D-
P82,
CS 2
P70,
RD
PJ2,
SRWR
TMP92CZ26A
D0 to D15
A1 to 20
TMP92CZ26A
CE
OE
WE
NOR
Flash Memory
D0 toD15
A0 toA19
Table