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Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 296 of 526
REJ09B0326-0600
Bit 3
Stop Bit Length (STOP):
Bit 3 selects 1 bit or 2 bits as the stop bit length is asynchronous
mode. The STOP bit setting is only valid in asynchronous mode. When synchronous mode is
selected the STOP bit setting is invalid since stop bits are not added.
Bit 3: STOP
Description
0
1 stop bit
*
1
(initial
value)
1
2 stop bits
*
2
Notes: 1. In transmission, a single 1 bit (stop bit) is added at the end of a transmit character.
2. In transmission, two 1 bits (stop bits) are added at the end of a transmit character.
In reception, only the first of the received stop bits is checked, irrespective of the STOP bit setting.
If the second stop bit is 1 it is treated as a stop bit, but if 0, it is treated as the start bit of the next
transmit character.
Bit 2
Multiprocessor Mode (MP):
Bit 2 enables or disables the multiprocessor communication
function. When the multiprocessor communication function is enabled, the parity settings in the
PE and PM bits are invalid. The MP bit setting is only valid in asynchronous mode. When
synchronous mode is selected the MP bit should be set to 0. For details on the multiprocessor
communication function, see section 10.3.6, Multiprocessor Communication Function.
Bit 2: MP
Description
0
Multiprocessor communication function disabled
(initial value)
1
Multiprocessor communication function enabled
Bits 1 and 0
Clock Select 1, 0 (CKS1, CKS0):
Bits 1 and 0 choose
φ
/64,
φ
/16,
φ
/4, or
φ
as the
clock source for the baud rate generator.
For the relation between the clock source, bit rate register setting, and baud rate, see Bit Rate
Register (BRR).
Bit 1: CKS1
Bit 0: CKS0
Description
0 0
φ
clock
(initial value)
1
φ
/4 clock
1 0
φ
/16 clock
1
φ
/64 clock
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...