HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 688
HD6417660
Manufacturer Part Number
HD6417660
Description
Renesas 32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417660.pdf
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Note:
24.2.7
PSELA is a 16-bit readable/writable register that has two purposes.
Bit 0 (RTCSEL1) selects a frequency for the low-frequency clock source that is used in the
Bluetooth interface (BT). When a 32.000kHz clock is selected, the clock is input to the BT. When
32.768-kHz clock is selected, the clock is converted into a pseudo 32.000kHz clock by the
frequency conversion circuit. For details, refer to section 21, Bluetooth Interface (BT).
Bits 1 to 8 select the function for a pin multiplexed with two or more other functions. When one of
the other functions are used, the corresponding bit in the PSELA should be specified before the
other function is specified by the port control register.
Setting example: To use IRQOUT function in the PTE6/RDI_CTRL2/IRQOUT pin
1. Write 1 to the PSA8 bit in the PSELA register.
2. Set the PE6MD1 and PE6MD0 bits in the port E control register (PECR) to (0.0) (other
Rev. 1.00, 02/04, page 650 of 804
Bit
3
2
1
0
functions).
*
Bit Name
PH1MD1
PH1MD0
PH0MD1
PH0MD0
Pin Select Register A (PSELA)
This register is not initialized by a manual reset and holds the contents.
Initial
Value*
1
0
1
0
R/W
R/W
R/W
R/W
R/W
Description
PTH1 Mode
When the TE bit in the SCSCR_1 register is 0:
00: Other functions (see table 24.1)
01: Port output
10: Output high-impedance state
11: Output high-impedance state
When the TE bit in the SCSCR_1 register is 1:
Regardless of the PH1MD1 or PH1MD0 bit setting, other
function (SCIF1_TxD) is selected.
PTH0 Mode
00: Other functions (see table 24.1)
01: Port output
10: Port input (pull-up MOS: On)
11: Port input (pull-up MOS: Off)
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