Rev. 1.00, 09/03, page 200 of 704
7.11.4 Pin
Functions
When the corresponding bit in PTCNT2 is set to 1, port A pins can be used as TPU I/O pins
(ExTIOCA1 and ExTIOCC0/ExTCLKA). The relationship between register setting values and pin
functions is as follows.
•
PA7/
CS3
/ExTIOCA1
When the TIOCA1S bit in PTCNT2 is set to 1, this pin can be used as the ExTIOCA1 pin.
According to operating modes, the TPU channel 1 settings by the CS3E bit in PFCR, the MD3
to MD0 bits in TMDR_1, the IOA3 to IOA0 bits in TIOR_1, and the CCLR1 and CCLR0 bits
in TCR_1, and the combination of the TIOCA1S bit and the PA7DDR bit, the pin function is
switched as shown below.
•
Extended Mode (EXPE = 1)
CS3E 0
1
TIOCA1S 0
1
TPU channel 1 setting
Table below (2)
Table below (1)
PA7DDR
CS3
output pin
Pin function
Single-chip
operation
CS3
output pin
ExTIOCA1 input pin
*
1
CS3
output pin
•
Single-Chip Mode (EXPE = 0)
TIOCA1S 0
1
TPU channel 1 setting
Table below (2)
Table below (1)
PA7DDR 0
1
0
1
PA7 input
pin
PA7 output
pin
Pin function
PA7 input
pin
PA7 output
pin
ExTIOCA1 input pin
*
1
ExTIOCA1 output
pin
Summary of Contents for H8S/2437
Page 2: ...Rev 1 00 09 03 page ii of xxxviii ...
Page 8: ...Rev 1 00 09 03 page viii of xxxviii ...
Page 32: ...Rev 1 00 09 03 page xxxii of xxxviii ...
Page 38: ...Rev 1 00 09 03 page xxxviii of xxxviii ...
Page 168: ...Rev 1 00 09 03 page 130 of 704 ...
Page 336: ...Rev 1 00 09 03 page 298 of 704 ...
Page 402: ...Rev 1 00 09 03 page 364 of 704 ...
Page 454: ...Rev 1 00 09 03 page 416 of 704 ...
Page 512: ...Rev 1 00 09 03 page 474 of 704 ...
Page 562: ...Rev 1 00 09 03 page 524 of 704 ...
Page 648: ...Rev 1 00 09 03 page 610 of 704 ...
Page 672: ...Rev 1 00 09 03 page 634 of 704 ...
Page 732: ...Rev 1 00 09 03 page 694 of 704 ...
Page 742: ...Rev 1 00 09 03 page 704 of 704 ...
Page 745: ......
Page 746: ...H8S 2437 Group Hardware Manual REJ09B0059 0100Z ...