r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 750

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r5f21346mnfp

Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet

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Part Number:
r5f21346mnfp#V0
Manufacturer:
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R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 35.4
Select with bits CMD1 to CMD0 the timing of data transfer from the buffer register to the general register.
However, transfer takes place with the following timing in spite of the value of bits CMD1 to CMD0 in the
following cases:
Value in buffer register ≥ value in TRDGRA0 register:
Transfer takes place at underflow of the TRD1 register.
After this, when the buffer register is set to 0001h or above and a smaller value than the value of the
TRDGRA0 register, and the TRD1 register underflows for the first time after setting, the value is transferred
to the general register. After that, the value is transferred with the timing selected by bits CMD1 to CMD0.
TRDGRD0 register
TRDGRB0 register
TRDIOD0 output
TRDIOB0 output
Complementary PWM Mode
Operation when Value in Buffer Register ≥ Value in TRDGRA0 Register in
The above applies under the following conditions:
• Bits CMD1 to CMD0 in the TRDFCR register are set to 11b (data in the buffer register is transferred at compare match
• Both the OSL0 and OLS1 bits in the TRDFCR register are set to 1 (active ‘H” for normal-phase and counter-phase).
between registers TRD0 and TRDGRA0 in complementary PWM mode).
Transfer with timing set by
bits CMD1 to CMD0
0000h
m+1
n3
n2
n1
Transfer
n2
n1
n2
Transfer at
underflow of TRD1
register because of
n3 > m
n3
Transfer
n3
Transfer at
underflow of TRD1
register because
of first setting to
n2 < m
Transfer
n2
m: Value set in TRDGRA0 register
n2
n1
Transfer with timing set by
bits CMD1 to CMD0
Transfer
n1
Count value in TRD0
register
Count value in TRD1
register
35. Usage Notes
Page 718 of 740

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