RX111_16 datasheet(31/127 Pages) RENESAS

номер детали	RX111

подробное описание детали	32 MHz 32-bit RX MCUs, 50 DMIPS, up to 512 Kbytes of flash memory

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R01DS0190EJ0130 Rev.1.30

Page 31 of 127

May 31, 2016

RX111 Group

4. I/O Registers

4.

I/O Registers

This section provides information on the on-chip I/O register addresses and bit configuration. The information is given as

shown below. Notes on writing to I/O registers are also given below.

(1)

I/O register addresses (address order)

 Registers are listed from the lower allocation addresses.

 Registers are classified according to module symbols.

 Numbers of cycles for access indicate numbers of cycles of the given base clock.

 Among the internal I/O register area, addresses not listed in the list of registers are reserved. Reserved addresses

must not be accessed. Do not access these addresses; otherwise, the operation when accessing these bits and

subsequent operations cannot be guaranteed.

(2)

Notes on writing to I/O registers

While writing to an I/O register, the CPU starts executing subsequent instructions before the I/O register write access is

completed. This may cause the subsequent instructions to be executed before the write value is reflected in the operation.

The examples below show how subsequent instructions must be executed after a write access to an I/O register is

completed.

[Examples of cases requiring special care]

 The subsequent instruction must be executed while an interrupt request is disabled with the IENj bit in IERn of the

ICU (interrupt request enable bit) set to 0.

 A WAIT instruction is executed immediately after the preprocessing for causing a transition to the low power

consumption state.

In the above cases, after writing to an I/O register, wait until the write operation is completed using the following

procedure and then execute the subsequent instruction.

(a)

Write to an I/O register.

(b)

Read the value in the I/O register and write it to a general register.

(c)

Execute the operation using the value read.

(d)

Execute the subsequent instruction.

Example of instructions

 Byte-size I/O registers

MOV.L #SFR_ADDR, R1

MOV.B #SFR_DATA, [R1]

CMP

[R1].UB, R1

;; Next process

 Word-size I/O registers

MOV.L #SFR_ADDR, R1

MOV.W #SFR_DATA, [R1]

CMP

[R1].W, R1

;; Next process

Аналогичный номер детали - RX111_16

производитель	номер детали	датащи	подробное описание детали
Renesas Technology Corp	RX111	1Mb / 114P	Renesas MCUs

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Аналогичное описание - RX111_16

производитель	номер детали	датащи	подробное описание детали
Renesas Technology Corp	RX113	1Mb / 131P	32 MHz, 32-bit RX MCUs, 50 DMIPS, up to 512 Kbytes of flash memory
	R01DS0190EJ0100	1,012Kb / 110P	32 MHz 32-bit RX MCUs, 50 DMIPS, up to 128 Kbytes of flash memory
	RX111	1,012Kb / 110P	32 MHz 32-bit RX MCUs, 50 DMIPS, up to 128 Kbytes of flash memory
	RX130	1Mb / 116P	32-MHz, 32-bit RX MCUs, 50 DMIPS, up to 128-KB flash memory
	RX210	6Mb / 223P	50-MHz 32-bit RX MCUs, 78 DMIPS, up to 1-MB flash memory,
	RX110	1Mb / 108P	32 MHz 32-bit RX MCUs, 50 DMIPS
	RX110	1Mb / 108P	32 MHz 32-bit RX MCUs, 50 DMIPS up to 128 Kbytes of flash memory, up to 5 comms channels, 12-bit A/D, RTC
	RX231	3Mb / 170P	54-MHz 32-bit RX MCUs, built-in FPU, 88.56 DMIPS, up to 512-KB flash memory
	R5F52108ADFP	782Kb / 92P	50-MHz 32-bit RX MCUs, 78 DMIPS, up to 512-KB flash memory, 12-bit AD, 10-bit DA
	RX230	2Mb / 177P	54-MHz 32-bit RX MCUs, built-in FPU, 88.56 DMIPS, up to 512-KB flash memory

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