r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 63

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Type
Interrupts
DMA
controller
(DMAC)
EXDMA
controller
(EXDMAC)
*
3
Symbol
NMI
IRQ15-A to
IRQ8-A*
IRQ7-A to
IRQ0-A
IRQ15-B to
IRQ13-B*
IRQ8-B*
IRQ7-B to
IRQ0-B
DREQ1
DREQ0
TEND1
TEND0
DACK1
DACK0
EDREQ3
EDREQ2
ETEND3
ETEND2
EDACK3
EDACK2
EDRAK3
EDRAK2
3
3
3
144-Pin
40
86, 85,
106 to 104,
83 to 81
31 to 28,
136 to 133
58 to 56
51
38, 37,
61 to 59,
34, 33, 3
82
81
104
83
106
105
33
3
59
34
61
60
49
48
H8S/2456, H8S/2456R
145-Pin
N1
H10, H12,
C13, D12,
D10, J10,
K13, J12
J3, K2, J1,
K4, D4,
C6, B5, A6
K7, L8, N7,
L6,
M2, N2,
M8, N8,
K8, K3, L2,
C2
K13
J12
D10
J10
C13
D12
L2
C2
K8
K3
M8
N8
L5
K6
Pin No.
32

29 to 26,
112 to 109

102 to 95
35
34
37
36
39
38




H8S/2454
120-Pin
I/O
Input
Input
Output These signals indicate the end of
Output DMAC single address transfer
Input
Output These signals indicate the end of
Output EXDMAC single address transfer
Output These signals notify an external
Rev. 1.00 Sep. 19, 2008 Page 33 of 1342
Function
Nonmaskable interrupt request pin.
This pin should be fixed high when
not used.
These pins request a maskable
interrupt.
The input pins of IRQn-A and IRQn-B
are selected by the IRQ pin select
register (ITSR) of the interrupt
controller.
(n = 0 to 15, m=0 to 8, 13 to 15 for
the H8S/2456R Group and
H8S/2456)
(n = 0 to 7 for the H8S/2454 Group)
These signals request DMAC
activation.
DMAC data transfer.
acknowledge signals.
These signals request EXDMAC
activation.
EXDMAC data transfer.
acknowledge signals.
device of acceptance and start of
execution of a DMA transfer request.
Section 1 Overview
REJ09B0467-0100