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7733 Datasheet(PDF) 446 Page - Renesas Technology Corp

Part # 7733
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  940 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7733 Datasheet(HTML) 446 Page - Renesas Technology Corp

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APPLICATIONS
7733 Group User’s Manual
17–39
(2) Initial settings for related registers
Fig. 17.2.17 Initial settings for related registers
17.2 Serial I/O
b7
b0
When the system clock (main clock) frequency = 16 MHz,
transfer rate = 2 MHz.
UART1 baud rate register (BRG1) (address 39 16)
0116
Transmission is enabled.
b7
b0
UART1 transmit/receive control register 1 (address 3D 16)
XX
X
Reception is disabled.
XX 0 X 1
b7
b0
UART1 transmission interrupt control register (address 73 16)
0
00
UART1 transmission interrupt is disabled.
X
Pin P43:Output mode
b7
b0
Port P4 direction register (address C 16)
1
Must be fixed to “0.”
Clock synchronous serial I/O mode
b7
b0
UART1 transmit/receive mode register (address 38 16)
0X
X
Internal clock is selected.
X0 0
0 1
UART1 transmit/receive control register 0 (address 3C 16)
CTS
/RTS function is disabled.
Pin TXD1’s output structure: CMOS output
Transmit data is output at the falling edge of the transfer clock.
LSB first
BRG1 count source: f 2
b7
b0
0 01
0
!! 00
X: It may be “0” or “1.”
Pin P43’s output level: “L”
b7
b0
Port P4 register (address A 16)
0



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