h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 430
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h8s-2111b
Manufacturer Part Number
h8s-2111b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2111B.pdf
(582 pages)
- Current page: 430 of 582
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15.4
15.4.1
The host interface is activated by setting one of bits LPC3E to LPC1E in HICR0 to 1 in single-
chip mode. When the host interface is activated, the related I/O ports (ports 37 to 30, ports 83 and
82) function as dedicated host interface input/output pins. In addition, setting the FGA20E, PMEE,
LSMIE, and LSCIE bits to 1 adds the related I/O ports (ports 81 and 80, ports B0 and B1) to the
host interface's input/output pins.
Use the following procedure to activate the host interface after a reset release.
1. Read the signal line status and confirm that the LPC module can be connected. Also check that
2. When using channel 3, set LADR3 to determine the channel 3 I/O address and whether
3. Set the enable bit (LPC3E to LPC1E) for the channel to be used.
4. Set the enable bits (GA20E, PMEE, LSMIE, and LSCIE) for the additional functions to be
5. Set the selection bits for other functions (SDWNE, IEDIR).
6. As a precaution, clear the interrupt flags (LRST, SDWN, ABRT, OBF). Read IDR or TWR15
7. Set interrupt enable bits (IBFIE3 to IBFIE1, ERRIE) as necessary.
Rev. 1.00, 05/04, page 396 of 544
the LPC module is initialized internally.
bidirectional data registers are to be used.
used.
to clear IBF.
Operation
Host Interface Activation
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